How to store the gray level pixel values into a 2-D array?
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In MATLAB,images are stored in a 1-D array....how to put them into a 2-D array?
2 个评论
Can you show any documentation that states that "In MATLAB,images are stored in a 1-D array." ?
All the documentation that I have ever read states that images are stored as m*n or m*n*3 arrays:
If you have an image in a "1-D array" then this is certainly not due to using the inbuilt MATLAB image functions, and you will need to show us your code so that we can see what you are doing.
Durga
2015-4-25
采纳的回答
If the images are the same size then you can simply subtract the arrays directly:
A = imread(filenameA);
B = imread(filenameB);
D = A-B;
This works because in MATLAB many operations are vectorized, which means they operate on the whole array all at once. If the images are different sizes then you will need to resize one or both of them before performing this subtraction. You could use imresize for this.
And then use median note that the image data is going to be 2D or 3D depending on the image type, so to get the median of all values you will need to convert the array to a vector first:
median(D(:))
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Jan
2015-4-25
0 个投票
No, gray level images are stored in 2D array in Matlab in general.
Please explain, why you assume that they are stored in 1D-vectors. This assumption seems to be the problem.
2 个评论
Jan
2015-4-25
Please post you code and post a copy of the error messages. It is hard to give a suggestion based on "I could not do it".
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