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1answer
98 views

How to “de-dupe” similar lines (detected using the Hough Transform as rho/theta pairs)

I'm trying to identify an object (a cube) in a set of photos. Using Canny/Sobel/Hough I've managed to get the photo down to a set of lines that are pretty accurate; however if I plot these lines on my ...
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1answer
281 views

Image segmentation - show or hide clusters

I'm trying to make a small program in c#, that will downsample image to specified amount of colors (using K-means). Then, user will be able to hide\show colored areas(clusters) in image. I've ...
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0answers
25 views

Rotation logic for MNIST Handwritten Digit Dataset

I am currently applying some pre-processing to this dataset. Some of the digits are extremely rotated and I would like to know how others managed to get them 'upright'. I have implemented something ...
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0answers
50 views

Project a piece of image cut by N-vertex shape to a different N-vertex shape

I have an N-vertex shape that I cut out from an image, and I want to project it onto another shape with the same amount of vertices, but different. So, the image will get changed inside the projection....
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0answers
173 views

Colour curves tool for “value” channel

I'm trying to write a program to read GIMP curves files and apply them to an image. I have successfully implemented the curves for the red, green and blue channels, but I can't get it working for the ...
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0answers
215 views

image processing algorithm to find solid square vs square outline in video frames

I am working on a system to detect an "embedded" 12 bit number within a series of frames that are recorded inside an mp4 file. The point of it is to automatically identify the "take", and also trim ...
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0answers
23 views

perfect isolation or train with polluted data for better OCR results

This is an (in my opinion) interesting thing I'm struggling with. I am building this app which should be capable to read utility meters. As with any OCR application this means I have to isolate the ...
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0answers
39 views

Speed of image comparison using GraphicsMagick in Node.js

Trying to determine whether a single image matches one of 100 other images. I have it working, but it returns the resutl too slow to operate in our production application. Current Implementation ...
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74 views

Web App - Better to load Large, low quality image or many html elements?

I'm creating a web application that is visually enormous. I'm talking 2 million pixels wide and 2 million pixels tall (about). My goal is to show dynamically changing spots all over the site. For ...