How can i change ppm image resolution when I using Imread?

This question was flagged by Angelo Yeo
  • Flagged as Duplicate by Angelo Yeo on 4 Jun 2024.
For example,
xx.ppm has 10bit data format
when I use a = imread("xx.ppm")
'a' file's data has multiplied by 64, because MATLAB Imread ppm default data format is 8bit unit
More exactly, If a files axis(1,1) origianl data is decimal 10 but In Matlab Imread, that data is changed decimal 640.
But I want using 10bit data format.
How can I change ppm image data unit format when I Using Imread?
please help me,
I'm sorry for the lack of readability because My English skill are not good
Thanks for reading.

3 Comments

Hi
Not clear enough:
Can you attach the "xx.ppm" file? it will be easier to understand
"'a' file's data has multiplied by 64" - not clear: Do you mean its size as a variable is multiplied by 64?
Hi
Sorry My English skill are poor
It's mean, xx files loading data 'a' has muliplied by 64,
xx files original data (view by using notepad) is 10 (10 bitdepth)
but matlab is forcibly change 16bitdepth(uint16) format.
So data is changed 10(In Notepad) --> 640 (In Matlab)
I want my ppm data format has 10 bit depth

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on 4 Jun 2024

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on 5 Jun 2024

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