Questions tagged [image-processing]
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57 questions
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Optimizing algorithm for categorizing pictures of Magic the Gathering Cards by type? [closed]
I'm making a piece of software that is able to recognize Magic the Gathering Cards from a picture or the actual camera.
The codebase scans for rectangular shapes (cards) in an image and calculates ...
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2
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Encoding text to image and decoding back to text
(FYI: I asked this question on stack overflow and was directed here)
My problem is as follows:
I have a dashboard running on a server at customer premises which updates every 15 minutes
The dashboard ...
2
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2
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345
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Implementing a method to achieve faster image acquisition
I hope I can explain my question clearly. I'm planning to do some real time 2D grayscale image acquisition, and after reading some articles, I noticed that many are using buffers or multithreading or ...
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Detecting whether a background image is "too light" to display white text over
I am building a mobile client app that gathers info about movies/TV shows from a website and displays it in a pretty format. When the user clicks on a show, they are taken to a page with the thumbnail ...
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How to OCR and/or recreate lines of Egyptian Hieroglyphs in Unicode/HTML?
I am wondering how to take these Hieroglyphs and make them into Unicode. I read through the Tesseract docs on how to create training data, but it seems largely tailored toward "traditional" ...
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3
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What is use of "DPI" of a "image file" while viewing it on a display?
Display devices have their own PPI.Do these devices respect the DPI information of image file? If not, then what is use of"DPI" of image file?
example:
Image file- height: 1200 px width: 900 ...
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How to create a T-shirt or book displacement map in practice?
So I learned that the feature I am interested in is called a "displacement map". This makes it so you can take a blank t-shirt (with all it's curves and subtle textures), and apply an image to it so ...
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How should I approach the comparison of two BMP images?
I am currently writing a Python program that retrieves the pixels from two BMP files and finds the percent difference between them (without using the Pillow library for the purpose of learning). I can ...
3
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1
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242
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How to guess which pieces of text belong to which lines in a scanned document?
I want to be able to analyze a five-years archive of supermarket receipts. The receipts are scanned, and thanks to Google Cloud Vision API, the result of an OCR is available. Google's API, however, ...
3
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1
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How to Define the Bandwidth in Mean Shift Clustering?
I am making a program using Java todo colo quantization using mean shift clustering algorithm and the image is RGB with resolution of 512x512. I want to reduce the image file size by reducing the ...
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2
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How do I extract only bold text from this image? [closed]
I am looking for an approach / algorithm for using OCR (like Tesseract) to extract only bold text from an image. The Python code I wrote can already identify small letters and numbers, but it cannot ...
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Can the Mean Shift Algorithm be used in color quantization?
I have a problem with deciding algorithm for color quantization. The image that I want to do color quantization is an RGB image with resolution 512 x 512. I want to reduce the color value in the pixel ...
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Low resolution Image to High resolution
Is it possible to scale a low resolution image to a highier resolution upto the point with minimum effect on quality, sharpness and other notable attributes of an image.
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1
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What techniques are there to detect the objects direction of travel?
I have been looking into object detection and tracking for a project that I am working on but I can't yet seem to find any techniques that I can make use of to utilise the information from object ...
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How do I check programmatically if two photos show the same drawing? [closed]
Imagine a simple drawing of let's say a duck. And you have an photo of it in your database.
Now a user takes a second photo of the same drawing of the duck. What approaches exist to check if both ...