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mengqi zhang


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Question


PDE heat equation one dimension
I solve the heat equation m = 0; x = linspace(0,1,20); t = linspace(0,2,5); u = sol(:,:,1); sol = pdepe(m,@pdex...

9 years ago | 1 answer | 0

1

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Question


pixels value in grayscale image
I'm new beginner in imaging matlab, I have a easy project but I just know how to insert an image in matlab. the problems is 1)I ...

9 years ago | 1 answer | 0

1

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Question


why do not white pixels equal black pixels
I'm sure the picture is half black and half white, but when I program the code, the whitepixels are not equal blackpixels why?? ...

9 years ago | 1 answer | 0

1

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Question


how to code the total pixels number and white pixels and black area pixels number
how to code the total pixels number and white pixels and black area pixels number. If I just need half image how to do that? I'm...

9 years ago | 1 answer | 0

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Question


how to calculate the white area pixels amount?
how to calculate the white area pixels amount?

9 years ago | 1 answer | 0

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