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 个评论
Matt J
2021-12-20
I suggest attaching the RGB image so that we can demonstrate.
Serife Kaba
2021-12-21
采纳的回答
Walter Roberson
2021-12-21
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.
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yanqi liu
2021-12-21
0 个投票
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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