image,matlab,image-processing,computer-vision , Saving images with more than 8 bits per pixel in matlab


Saving images with more than 8 bits per pixel in matlab

Question:

Tag: image,matlab,image-processing,computer-vision

I need to save a set of pre-processing images in matlab, resulting in grayscale images. The problem is the fact that these pre-processed images have pixel values higher than 255. If I save them with imwrite() as, for instance, .PNG files, does matlab normalize the values to be in [0,255] or no? should I have to save my images in another format to keep their original values?


Answer:

You can use the bitdepth parameter to set that.

imwrite(img,'myimg.png','bitdepth',16)

Of course, not all image formats support all bitdepths, so make sure you are choosing the the right format for your data.


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