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Re: watermarking
I dont know how to WM in matlab , but in C++, it's so easy for simple requirement. Do this:
for(all pixel of image 1)
for(all pixel of image 2)
{
result.r=pixel1.r*.5 +pixel2.r*.5 ;// Change .5 to percent you need
result.r=pixel1.g*.5 +pixel2.g*.5 ...
Dont need to use any tool, man. Just try API func PlaySound() for it. If you need more manual about playing Wave , try MSDN about Open and Write to wave device. it's not too dificult.(I use VC6.0)
Re: For C++ expert
I dont completly understand your question. f5() func simply return X object with default construction and the func Modify() was never called. I think that's all.
If you just need a 2D graphic processing. GDI is helpfull to you.
LoadImage() func wil help you load an Bitmap or Icon in to your memory, then you can process or show it on to the screen.
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