
Đang triển khai
Đã đăng vào
Thanh toán khi bàn giao
I have two files for each job: the digital artwork used for printing and a high-resolution scan of the printed sheet. The scan contains twenty repeated copies of the same design, while the original file holds just one. I need a small desktop or command-line tool that will automatically: • align the scan to the original, even if the sheet is slightly rotated or stretched • split or tile the scan so each of the twenty copies is compared against the master design • highlight every deviation—colour shifts, missing or extra elements, mis-registration, smudges, anything that makes the printed piece differ visually from the source • export the marked-up image (overlay or side-by-side) and a concise summary report I can review or forward to our press operator You are free to use Python + OpenCV, C++ with OpenCV, MATLAB, or another well-documented computer-vision stack, as long as the solution runs locally on Windows without complex setup. I will supply sample originals and their corresponding scans for the demo. Before we talk about payment, I must see a working proof of concept on at least one pair of images—nothing fancy, just enough to show the difference-detection pipeline functions accurately. After I confirm the demo meets the brief, we can finalise the hand-off of the full application and arrange immediate payment. When you reply, outline: 1. The libraries and algorithms you plan to use for registration and difference detection 2. How you will handle colour variation thresholds and noise from the scanner 3. Your estimated timeline for the demo and final build I look forward to your proposal.
Mã dự án: 40330827
26 đề xuất
Dự án từ xa
Hoạt động 13 ngày trước
Thiết lập ngân sách và thời gian
Nhận thanh toán cho công việc
Phác thảo đề xuất của bạn
Miễn phí đăng ký và cháo giá cho công việc

Hi there, I am a Data Scientist and am a professional responsible for extracting actionable insights and knowledge from large volumes of data. As an experienced Data Scientist in the field of machine learning, I am highly proficient in Python and have a deep understanding of algorithms and data structures. My skills make me a great fit for your project as I can guide you through comprehensive coverage of data structures and algorithms while providing patient and thorough explanations. I have over 12-plus years of experience with Python Library Pandas, Karas, TensorFlow, NumPy, PyCharm, Py torch, Open CV, NLP, and others. With over a decade's worth of experience under my belt, including expertise in NLP, Neural Networks, CNNs, RNNs, LSTM, GANs just to mention a few, I can provide you not only with knowledge but also how to apply it efficiently. Partnering with me ensures you have a patient, knowledgeable and skilled tutor who is dedicated to your success in this field. My top priority is to provide a high quality of work, https://www.freelancer.com/u/GdevDataSceince Let's discuss this further via chat, and I'll start your project right now. Thanks Gdev
$30 USD trong 7 ngày
5,6
5,6
26 freelancer chào giá trung bình $151 USD cho công việc này

For the Printed Image Comparison Software project, I plan to use OpenCV for registration and difference detection algorithms. I will handle color variation thresholds and scanner noise by implementing adaptive thresholding and noise reduction techniques. I estimate a week for the demo and two weeks for the final build. My skills in C Programming, Python, CUDA, C++ Programming, and Image Processing align perfectly with the project requirements. I am confident in delivering a high-quality solution within your timeline and budget. Let's discuss further details to ensure your satisfaction. Please go through my profile its 15 years old see the work I did over the years. No Win No Fee means that your satisfaction is my utmost priority. Lets discuss the job details. Moreover, I am willing to start the job and perform tasks without even being hired; it is just to show my commitment to this project. Looking forward to hear from you.
$175 USD trong 7 ngày
6,3
6,3

I know how maddening it is to hunt down tiny color shifts, smudges, or mis-registration across a sheet with twenty repeats. The best thing about me is I’ve worked on a very similar project recently. That project was a Python/OpenCV tool that aligned scanned sheets to a single-master artwork, tiled the scan into individual instances, and produced overlay images plus a short CSV report highlighting deviations. For your job I’ll use Python with OpenCV, scikit-image and numpy. For registration I’ll try ORB/AKAZE keypoints with RANSAC homography and fall back to phase-correlation or ECC for global stretch/rotation. Difference detection will combine SSIM and contour extraction with color comparisons in LAB using CIEDE2000 to catch shifts, plus morphological filters to remove scanner noise. I’ll handle color variation by converting to LAB, doing local histogram matching for global drift, applying median/gaussian denoise, and exposing a tunable CIEDE2000 threshold per project. Demo estimate: 3–5 days for one image pair proof of concept. Final build with CLI/executable, batch mode, overlay/side-by-side export and a concise report in 7–10 more days. Quick question: are the twenty repeats always in a consistent grid and spacing, or can layout vary? And do you prefer a PDF summary or machine-readable JSON/CSV for the report? If that sounds good, let’s chat or hop on a quick call. Regards Ali Zain!!
$140 USD trong 7 ngày
4,8
4,8

Hey , I just went through your job description and noticed you need someone skilled in Image Processing, CUDA, C Programming, Computer Vision, C++ Programming, OpenCV, Python and MATLAB. That’s right up my alley. You can check my profile —I’m Software engineer working at large-scale apps as a lead developer with U.S. and European teams. I’ve handled several projects using these exact tools and technologies. Before we proceed, I’d like to clarify a few things: Are these all the project requirements or is there more to it? Do you already have any work done, or will this start from scratch? What’s your preferred deadline for completion? Why Work With Me? 1) Over 230 successful projects completed. 2) I have not received a single bad feedback since the last 5-6 years. 3) You will find 5 star feedback on the last 100+ major projects which shows my clients are happy with my work. 4) Long-term track record of happy clients and repeat work. I prioritize quality, deadlines, and clear communication. Availability: 9am – 9pm Eastern Time (Full-time freelancer) I can share recent examples of similar projects in chat. Let’s connect and discuss your vision in detail. Kind Regards, Imran Haider
$30 USD trong 11 ngày
0,0
0,0

Hello, As a five-year seasoned full-stack developer heavily vested in AI and automation, I am well-equipped to handle your project. Although my stack may not be explicitly mentioned in the brief, rest assured that I possess the necessary skills and flexibility required to tailor my approach for the task at hand. My extensive work with OpenCV and computer vision tasks will be particularly useful as it aligns with the aspect of image registration and difference detection that your project hinges upon. Moreover, being no stranger to handling color variations and signal noise, I'll bring these insights into play throughout the software development cycle to ensure accurate alignment and highlight potential discrepancies effectively. My track record on-time deliveries, combined with my agile workflows sans compromise on quality, align perfectly with your requirement for an assured working proof of concept before discussing payment parameters. Lastly, given my proficiency in building end-to-end full-stack solutions that are not only performant but also customizable and scalable, I'm confident about completing your project within the stipulated timeline while providing you complete autonomy over the tool's functionality. So let's discuss how we can 'engineer' an automated solution that transforms your printing process into a more efficient one while saving time for more valuable tasks. I await your response! Thanks!
$300 USD trong 3 ngày
0,0
0,0

Hi there,\nThe challenge you're facing with the need to accurately compare printed designs against the original artwork involves intricate image processing tasks. With four years of experience solving similar problems, I can develop a tool using OpenCV in Python. I'll implement algorithms for image registration to align the scanned image despite any rotation or stretching, and then segment the scan into twenty parts for precise comparison against the master design. Additionally, highlighting deviations such as color shifts and mis-registrations will be accomplished using pixel difference analysis. For color variations and noise handling, I will implement adaptive thresholds and Gaussian filtering techniques to ensure accurate detection. I will provide you with a working proof of concept using sample images first, ensuring it meets your expectations. \nI estimate the demo can be completed within 3 days, and the final build will take an additional 5 days to finalize everything and supply the requested reports. \nBest regards,
$180 USD trong 2 ngày
0,0
0,0

Hi there, I understand you need a compact, desktop or CLI tool that automatically aligns a high-res scan to the master design, tiles the scan into twenty copies, detects every deviation, and exports both a marked-up image and a concise summary report for fast hand-off to the press. I have spent the last 4 years solving exactly this type of problem in production environments, delivering robust, repeatable CV pipelines that work with imperfect scans and prints. What I’ll deliver: a locally-runnable tool (Python + OpenCV or C++ with OpenCV, with optional MATLAB bindings) that: - Registers the scan to the master artwork using robust registration (ECC-based or feature-driven, with homography and perspective correction) to handle slight rotation and stretching. - Automatically identifies and tiles the scanned sheet into the 20 copies for per-copy comparison, using grid detection or contour-based segmentation. - Computes per-copy diffs in a perceptually meaningful color space (Lab/CIE Delta E) and highlights deviations: color shifts, missing/extra elements, mis-registration, and smudges. - Produces an overlay-marked image and a concise summary report (CSV/JSON) suitable for operator review, plus a side-by-side export. - Includes sensible color-thresholds and noise handling: histogram normalization, CLAHE, mild denoising, and outlier-robust statistics to minimize scanner noise impact. - Runs locally on Windows with a lightweight dependency footprint and straightforward setup. I’ll a
$220 USD trong 7 ngày
0,0
0,0

Hello! I appreciate the opportunity to assist with your printed image comparison software project. I understand you need a tool that automatically aligns scans, tiles them for comparison, and highlights any discrepancies from the original artwork. It’s crucial for ensuring quality control in your printing process. For this project, I plan to use Python with OpenCV, leveraging algorithms such as template matching and feature detection for registration. I will also implement techniques to manage color thresholds and noise mitigation, ensuring accurate comparisons. As for the timeline, I can deliver a working proof of concept within 5 days, followed by the complete application in about 2 weeks. By viewing the demo, you’ll see how effectively the difference-detection pipeline works. Looking forward to your feedback!
$150 USD trong 1 ngày
0,0
0,0

Hello, As a seasoned professional with experience in both C++ programming and Python, I am well equipped to tackle the task at hand. My repertoire includes using OpenCV for image processing and analysis, which will be a key component in developing your image comparison software. I am capable of handling complex tasks, like alignment and detection, even when presented with rotating or stretched shapes - my algorithmic understanding coupled with OpenCV's robustness ensures precise outcomes. In addition to registration algorithms, I efficiently manage colour variations and noise reduction from scanners by implementing appropriate thresholding techniques tailored for your specific needs. I understand that such variations may distort the image quality and interfere with accurate difference detection. However, my solid command over computational vision ensures that all deviations like color shifts or mis-registrations are effectively brought out thereby enabling a concise summary report for you to review. I propose a two-week timeframe to create and present you with a working proof of concept on at least one test pair of images to verify if it meets your expectations. Upon affirmation, the final application will be delivered promptly while adhering closely to your unique requirements. Apart from my technical prowess, clients choose me time and again because of my professional communication and reliable full-stack development capability w Thanks!
$100 USD trong 7 ngày
0,0
0,0

Hello, As someone with a background in developing robust software applications and leveraging AI to automate processes, I am well-equipped to create a tailored solution for your printed image comparison needs. Firstly, in line with your specifications, I intend to employ the powerful computer vision capabilities of OpenCV to address alignment and register rotational or stretching instances between the scans and original files. I will create an algorithm that not only handles splitting the scan image into individual copies but also effectively compares each copy against the master design to identify even the slightest deviations. Moreover, my expertise in handling and accounting for color variation thresholds and scanner noise will be invaluable. Utilizing appropriate image processing techniques, such as thresholding or adaptive histogram equalization, I will apply necessary filters to maximize accuracy while minimizing noise. The output of my system will effortlessly highlight any visual differences on the printed sheets including color shifts, missing/extra elements, mis-registrations, smudges etc. Finally, considering that time is of essence for you, I assure you that my organized development approach coupled with swift communication and consistent product delivery are key reasons many clients choose me. For this project specifically, I anticipate delivering a working proof of concept on at least one pair of images within two wee Thanks!
$100 USD trong 7 ngày
0,0
0,0

Hello, 1. To handle the registration and difference detection, C++ with OpenCV would be my language of choice for this project. OpenCV is known for its robust computer vision abilities, and it provides several pre-built algorithms that I could employ to align the scanned images with the original one accurately. Additionally, I can use image splitting techniques to separate each individual repetition from the scan and then efficiently compare them with the master design. 2. Addressing variations in scanned images is crucial to ensure accurate results, and I plan to tackle this by utilizing both tightening color thresholds as well as advanced noise-reducing techniques provided by OpenCV. My approach will be to fine-tune these parameters based on your specific case, even if that means some trial and error, I won't rest until we get it right. 3. As an experienced Full Stack Developer, time management is a skill I'm very proud of. After reviewing your project thoroughly, I estimate around 2 weeks for the demo and subsequent month for completion of the entire application build. During this timeline, you can expect frequent updates from me so you can have real-time visibility into the progress. My goal is not only to create a functional solution but one that surpasses your expectations in terms of performance and usability. Let's transform your business ideas into a reality together - choose me and let's get started on this exciting project! Thanks!
$30 USD trong 9 ngày
0,0
0,0

Hello, As an experienced Full Stack Engineer, my expertise is not just limited to web and mobile app development but also extends to AI-powered systems built on Python and utilizing libraries such as OpenCV. This makes me a perfect fit for your Printed Image Comparison Software project. For image registration, I propose using feature-based methods like Scale-Invariant Feature Transform (SIFT) or Speeded-Up Robust Features (SURF) for robustness against rotation/translation/stretching. To efficiently detect differences, I'll employ approaches like Histogram of Oriented Gradients (HOG) or Convolutional Neural Networks (CNN). Understanding the importance of precise color variation thresholds, I plan to incorporate techniques like color normalization or histogram matching to remove any ambiguity caused by different printing conditions. To tackle scanner noise, my strategy will be to apply appropriate filters like Median or Gaussian blur to smoothen the image while preserving relevant details. To present you with a robust proof-of-concept, I can deliver a working demo on one pair of images within two weeks. Afterward, we can finalize the full application keeping in mind your specific requirements and timeline. Rest assured that my goal is always to deliver solutions that are both functionally efficient and user-friendly. Let's make your ideas work! Thanks!
$30 USD trong 7 ngày
0,0
0,0

Hello, How are you? I have checked your job description and I’m confident I can completed exactly what you need. I have extensive experience with AI content, OpenCV-driven image alignment, high‑precision registration, difference‑detection pipelines, and building lightweight Windows‑compatible CV tools. Your workflow, aligning scanned sheets, splitting repeated prints, and detecting deviations, matches solutions I’ve built for print QA and automated visual inspection. So I think this job is an ideal match with my skills and experience. I’ll deliver a clean Python/OpenCV proof of concept showing alignment, tiling, and robust visual‑difference highlighting on your sample pair. Please send me a message so that we can discuss more. Thanks Taras
$150 USD trong 1 ngày
0,0
0,0

Hello, As an experienced Full-Stack JavaScript Developer, I appreciate the task's nature and its impact on your business needs. To build this important software, I'll use Python with OpenCV, an industry-leading toolkit for computer vision, renowned for its registration and image analysis capabilities. I'll implement specific algorithms to align both the original artwork file and its corresponding scan, even if there is rotation or distortion. Regarding color variation thresholds and scanner noise, I am cognizant of the challenges they pose. Hence, I will incorporate advanced filtering techniques to reduce noise without compromising on valuable details. As for color variations, I'll develop algorithms that allow for dynamic thresholds based on image comparisons, enabling accurate detection of even subtle differences between the files. Finally, in line with your need for a timely delivery within Windows-compatible parameters, working with cloud-native architectures to enhance cost efficiency and leveraging agile workflows for optimal quality assurance, my estimation is to complete the demo in 7-10 days and the full build in 4-5 weeks. However, delivering a proof-of-concept on at least one pair of images is essential to ensure my solution adequately aligns with your expectations. My unique blend of AI-powered digital craftsmanship honed over 5+ years will undoubtedly ensure that the end product is a high-performing printed image c Thanks!
$200 USD trong 4 ngày
0,0
0,0

Hello, Building an automated software program to analyze and compare printed images is right up my alley. As a dedicated AI developer, I have the expertise necessary to create the powerful, efficient, and user-friendly tool you need. In this project, I propose using Python with OpenCV for its robust image processing capabilities. Python and OpenCV are well-documented computer vision stacks that will enable us to handle the precise registration alignment, splitting or tiling of images for comparisons, and marking up deviations between the original and scanned copies as required seamlessly. Handling color variation thresholds in scanned images can be tricky, but my extensive experience with image pre-processing techniques allows me to tackle this challenge head-on. We'll employ various algorithms such as histogram equalization, Gaussian blur filtering, and adaptive thresholding to enhance the clarity of your scans, minimize noise interference from your scanner, and effectively highlight all significant deviations on an overlay or side-by-side comparison. Regarding the timeline: Given the complexity of this specific task, I estimate that I can deliver a proof of concept demonstrating accurate difference detection between your original image and one scanned copy within 2-3 weeks. Should you find the demo satisfactory, we'll proceed promptly to finalize the full application and arrange immediate payment. Partnering with me means securin Thanks!
$100 USD trong 7 ngày
0,0
0,0

Hi There, Thank you for providing a detailed description of your project. I am excited about the opportunity to work on this image comparison tool. Below, I will outline my approach, including the libraries and algorithms I'll use, as well as my estimated timeline for the demo and final build. ### Proposed Solution 1. **Libraries and Algorithms for Registration and Difference Detection:** - **Libraries:** I plan to use Python with the OpenCV library, which is well-documented and has robust support for image processing tasks. - **Image Registration:** I will use feature detection methods such as SIFT (Scale-Invariant Feature Transform) or ORB (Oriented FAST and Rotated BRIEF) to align the scanned image to the original artwork. These methods are effective for handling slight rotations and scaling. - **Difference Detection:** For identifying deviations between the registered images, I will employ techniques such as image subtraction and contour detection to highlight discrepancies in color, missing elements, mis-registration, etc. 2. **Handling Colour Variation Thresholds and Scanner Noise:** - To address color variation, I will establish thresholds based on the color histograms of both images. This can help to normalize differences such as lighting variations. - For noise reduction, Gaussian blurring or median filtering techniques will be applied to preprocess the scanned image, ensuring that minor artifacts do not affect the difference detection. 3. **Estimated Timeline:** - **Demo Development:** I can provide a working proof of concept within
$170 USD trong 7 ngày
0,0
0,0

◉•══•◉ ꧁✦༺⭐ **Print Comparison CV Tool (PoC → Full Build)** ⭐༻✦꧂ ◉•══•◉ Your challenge is precise alignment and defect detection between a master design and a scanned sheet containing repeated prints. The goal is a reliable, automated pipeline that handles rotation, distortion, and noise while highlighting true print defects. I specialize in computer vision with OpenCV/Python, building inspection tools for alignment, segmentation, and visual diffing with high accuracy. **Approach** ⁍ Registration - ORB/SIFT feature matching + RANSAC homography for rotation/scale correction ⁍ Grid extraction - detect layout via Hough lines/contours, then tile into 20 regions ⁍ Normalization - color space conversion (LAB), histogram matching to reduce scan bias ⁍ Difference detection - SSIM + absolute diff + morphological filtering for defects ⁍ Output - overlay masks + side-by-side export + concise defect report per tile **Noise & Color Handling** ⁍ Adaptive thresholds in LAB space (ΔE) to ignore minor scanner shifts ⁍ Blur + morphology to suppress noise, preserve structural defects ⁍ Optional calibration using a reference patch if available **Timeline** ⁍ PoC (1 sample pair): 2–3 days ⁍ Full tool (CLI/desktop, Windows-ready): 5–7 days I can deliver a working PoC quickly to validate accuracy, then finalize a robust, easy-to-run tool. Best regards. Benjamin.
$150 USD trong 3 ngày
0,0
0,0

Hi there! You are building an automated visual comparison tool, and the real challenge is accurately detecting subtle print deviations across twenty repeated designs while handling rotation, scaling, and colour shifts — that is exactly where most image-checking pipelines fail. I’ve delivered Python and OpenCV-based solutions that register images precisely, detect misalignments, and highlight visual differences automatically. By combining computer-vision alignment techniques with intelligent difference mapping, I ensure every colour shift, smudge, or missing element is reliably flagged and exported for review. I will create a Windows-friendly tool that aligns your scanned sheets to the master artwork, splits them into individual tiles, highlights deviations, and produces an overlay image along with a concise report for each job. Check our work: https://www.freelancer.com/u/ayesha86664 Do you want the deviation markers to prioritise colour differences, structural differences, or both equally? I am ready to start — just say the word. Best Regards, Ayesha
$110 USD trong 3 ngày
0,0
0,0

Hello there, I hope you’re well. I’m a solo developer with hands-on experience in computer vision, Python, and OpenCV, focused on practical, locally-run tools for imaging workflows. I design lean, reliable solutions that fit desktop or CLI environments, so you can run them on Windows with minimal setup. For this project I’ll build a pipeline that registers the printed scan to the master design even when the sheet is rotated or stretched, tiles the scan into the twenty copies, and computes per-copy diffs against the source. I’ll expose clear overlays or side-by-side comparisons and produce a concise, exportable summary report suitable for sharing with the press operator. The demo will rely on a robust registration stage (feature-based or ECC-based alignment), tile-based extraction, and a pixel-diff metric with strong noise handling. I’ll implement a deterministic, testable diff output and keep the code modular for easy hand-off. I can start with a proof-of-concept that demonstrates the difference-detection pipeline on one pair, then extend to the full workflow. I’ll deliver a ready-to-run demo within the agreed timeline and follow up with the complete application after your approval. Please feel free to contact me so we can discuss more details. I am looking forward to the chance of working together. Best regards, Billy Bryan
$250 USD trong 2 ngày
0,0
0,0

Hi, I’m confident I can help you build a desktop tool that compares scanned sheets to your master artwork automatically and highlights every deviation. Using Python with OpenCV and NumPy, I’ll implement robust image registration (feature-based and homography alignment) to handle slight rotation, scaling, or skew. After alignment, the scan will be tiled into the twenty repeated copies and each compared pixel-wise to the master design using color difference metrics and structural similarity indices. I will start by aligning the scan to the original and splitting it into individual tiles. Next, I’ll detect differences including color shifts, missing/extra elements, misregistration, and smudges, applying configurable thresholds and morphological filtering to reduce scanner noise. Finally, I’ll generate a marked-up overlay image and a concise summary report listing deviations for each copy. The demo will show the pipeline on one pair of images to confirm accuracy before full implementation. I take pride in delivering clean, reliable, locally runnable tools with minimal setup. Looking forward to collaborating,
$450 USD trong 7 ngày
0,0
0,0

Hello, I’d be glad to help build your local image-comparison tool for print quality control and deliver a working proof of concept on your sample files. I’m a developer experienced in **Python, OpenCV, image processing, and computer vision**, with a strong focus on building reliable desktop and local automation tools. One of the key challenges in this type of project is ensuring **accurate registration between the master artwork and scanned sheet while filtering scanner noise and detecting only meaningful print deviations**. My approach is to use OpenCV-based alignment with feature matching and geometric correction, then tile the repeated prints, compare each copy against the source with thresholded difference analysis, and export a marked-up image plus a concise defect summary for review. My goal is to make the tool feel like a **practical inspection workflow that quickly shows exactly where the printed output differs from the original**. For the demo, I can start with Python and OpenCV for registration, color-threshold tuning, and noise filtering so the proof of concept is fast to validate and easy to extend into a final Windows build. A couple of quick questions: • Are the twenty copies always arranged in the same grid layout on every scanned sheet? • Do you want the final delivery as a simple Python executable or a command-line tool first? Best regards, Carlos
$30 USD trong 5 ngày
0,0
0,0

Cyprus, Turkey
Phương thức thanh toán đã xác thực
Thành viên từ thg 4 2, 2015
$750-1500 USD
$30-250 USD
$10-30 CAD
tối thiểu 36 GBP£/ giờ
£10-15 GBP/ giờ
₹12500-37500 INR
$250-750 USD
$30-250 USD
$14-30 NZD
$1500-3000 USD
£10-20 GBP
£250-750 GBP
$250-750 USD
$30-250 USD
₹1500-12500 INR
₹37500-75000 INR
$30-250 USD
$250-750 USD
$10-30 USD
$30-250 NZD
$10-30 USD
₹1500-12500 INR