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

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P Sai Venkat Kushal 2020-12-16

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回答： Vinai Datta Thatiparthi 2020-12-21

RGB_108.png

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

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Walter Roberson 2020-12-20

Perhaps you are looking at the information for a file in a different directory?

My system says the image is 500 x 500 x 3

Uday Pradhan 2020-12-20

Screenshot (45).png

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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Vinai Datta Thatiparthi 2020-12-21

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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!