pixel size of the image in matlab different from that of original pixel size

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I am using MATLAB 2019b
I am facing the issue where the pixel size of the image is different from what MATLAB is giving as the pixel size of the image. I have tried using imread funciton of MATLAB it is showing the pixel size given in MATLAB. I am facing this issue only incase of this image and not incase of other images.
Any kind of suggestion or advice is appreciated
  4 Comments
Uday Pradhan
Uday Pradhan on 20 Dec 2020
Sai, please check the screenshot attached. The RGB_108.png which you have attached has dimensions 500 x 500 according to the Properties dialog.

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Answers (1)

Vinai Datta Thatiparthi
Vinai Datta Thatiparthi on 21 Dec 2020
Hi Sai,
The image that you've shared on the community, I've also noticed that it's size is 500x500x3. Even in the properties of the image, you'll notice the "width" & "height" as 500 respectively. Also, notice that the "Bit Depth" is 24, indicating 3 channels, therefore resulting in size of the image as 500x500x3. For instance, in a grayscale image, the "Bit Depth" would have been 8 instead.
If the information from MATLAB and properties pane don't match, then a reasonable explanation could be that you're probably working on two different images (like was pointed out by @Walter).
Hope this helps!

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