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WatermarkingAlgorithmResearchandImplementationBas
... are hidden. And blocking the selected image according to
8×8 pixel, then dividing the selected image into four non-overlapped
sub image blocks according to 4×4 pixel, and thus the watermarks are
embedded through adjusting their DCT ...
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zncc.rar
ZNCC Normalized cross correlation
m = zncc(w1, w2)
Compute the zero-mean normalized cross-correlation between the two
equally sized image patches w1 and w2. Result is in the range -1 to 1, with
1 indicating identical pixel patterns.
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clustering.rar
To identify distinguishable clusters of data in an n-dimensional pixel
value image.
Given: Samples of multi-spectral satellite images
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LazRGBGraphics-0.2.1.zip
Lazarus Component
A package for fast in memory image processing and pixel manipulations (like scan line).
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threshold.rar
... org
Here it uses a free library - OpenCV - made by intel. .. to convert all the pixels in an image - in fact in a movie - a capture from the webcam. If the color of a pixel is "higher" comparing to a threshold it turns black - otherwise it becomes white.
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imageResampling.m.rar
This function resamples the images at the new grid points defined by the new pixel sizes. It assumes that intensities are defined at the pixel centers
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reverser.zip
Basic algorithm (using pixel manipulation, not other functions) to get the negative of a colour image in C using OpenCV library to load and display image
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imresample.zip
This is a simple function that resamples the image at a different pixel size
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