remove background and increase the contrast
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Kasmayanti Sakaria on 18 May 2018
I am having a problem with my images. I have no idea on how to remove the background (grey color) and increase the contrast of gap (black one). Attached the image.
Could anyone please help me to solve my problem.
Thank you in advance :)
Guillaume on 18 May 2018
Edited: Guillaume on 18 May 2018
For the contrast, have you tried imadjust?
For the background, typically, you record a background image that you then subtract from your test images (for dark background). In your case, however, you could simply threshold the image. Assuming that your image is uint8, does
yourimage(yourimage > 127) = 255;
work for you?
However, if you're going to binarise your image, then you don't need to adjust the contrast or play around with the background,
should isolate the black from the background.