Programmatically generate a composite portrait mosaic?

I need to create composite portrait mosaics (i.e. portraits made out of other portraits). See reference below. Anot...

Stretch an image to fit in any quadrangle?

The application PhotoFiltre has an option to stretch part of an image. You select a rectangular shape and you can th...

How to extract account number in cheque/check images?

I am working on a task to extract the account number from cheque images. My current approach can be divided into 2 s...

How to create diagonal stripe patterns and checkerboard patterns??

Based on this question, I can confirm that horizontal patterns can be imposed onto a matrix (which in this case is a...

Image-Processing: Converting normal pictures into FishEye images with intrinsic matrix?

I need to synthesize many FishEye images with different intrinsic matrices based on normal pictures. I am following ...

How to change thin image to fat image in iPhone SDK??

Hi, is there any way to change your image thin size to fat size vice-versa in iPhone SDK? In this application I wan...

How to determine shape is Semicircle by given point collection??

Here is point collection of polygons <Polygon Points="24,188,24,183,25,176,26,172,29,166,33,160,38,155,44,151,50...

How to detect hologram overlays like the ones in ID Cards??

Is there any good way to detect the holograms inside security documents like identity cards? I've tried quite a few ...

How do I find Waldo with Mathematica??

This was bugging me over the weekend: What is a good way to solve those Where's Waldo? ['Wally' outside of North Am...

ImageMagick: put white background under transparent PNG, then invert colors?

I have a PNG image with a black shape on transparent background. I need a white shape on a solid black background in...

Segmentation of Pallets from images?

Image of Pallets in Warehouse I want to segment the pallets shown in the image (mentioned above) as I need to us...

OpenCV bilinear downsampling with non-integer scaling?

I need help in figuring out the algorithm/implementation OpenCV is using for image-downsampling with non-linear scal...

Script to export non-transparent extremities of PNG files?

This is a bit of a complicated question because I don't really know where to start or what technology to use to arri...