How can I embedd data to an image
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I have an M X N image with each pixel grayscale value x∈[0,255]. I need to embedd some binary data to this image. For that I need to perform the following operations.
1. Scan the image, once meet the pixel (whose grayscale value is a), check the to-be-embedded bit. If the to-beembedded bit is “1”, the pixel grayscale value is changed to a+1. If the bit is “0”, the pixel value remains a.
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Jan
il 17 Gen 2013
These are detailed instructions. But what is your question? What have you tried so far and which problems occurred?
What kind of help do you expect from a forum?
Risposte (1)
Image Analyst
il 17 Gen 2013
% Shift histogram right by one bin:
[maxCounts, indexOfMax] = max(counts) % counts is your histogram
counts(indexOfMax:end) = count(indexOfMax-1:end-1);
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