PIXEL VALUE NORMALIZATION 0 and 1
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Dear Sir/Madam,
I have DICOM images taken from the angiography device and I labeled my images using Adobe Photoshop, then painted the background with black and the part I labeled with white.
I exported the labelled images in png format from photoshop.
However, the images appearing in black and white are in RGB format, although I converted the image to binary with the MATLAB program, all numbers appear as 2 in the pixel range.
How can I make 0 and 1 pixel interval for binary images ? I would be grateful if you can help me
Best regards
Şerife Kaba
2 Comments
Accepted Answer
Walter Roberson
on 21 Dec 2021
Although you posted a PNG image, we can tell that at some point the image had been saved in jpeg format, which has resulted in some boundary pixels being blurred.
IM47 = imread('IM-0001-0047.png');
BW47 = imbinarize(rgb2gray(IM47));
Now BW47 will be the binary labels that you need.
More Answers (1)
yanqi liu
on 21 Dec 2021
yes,sir,may be the image file save be Photoshop get rgb format,so we read it to logical,such as 0 and 1 value
may be use
im2uint8(your_logical_label_matrix)
make the value to 255(white)、0(black)
and use
classNames = ["target","background"];
labelIDs = [255 0];
to generate pixelLabelDatastore
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