hello., i need ur guidance to read the pixel values of rgb image and convert those to binary representation.,
thanks in advance
MATLAB: How to read the pixels of image and convert it to binary representation
binaryImage Processing Toolboximage segmentationpixels
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A grayscale image is monochrome. There is nothing to do. There are no colors. Just look at the web site for any camera manufacturer out there, such as this really excellent camera from Lumenera: http://www.lumenera.com/products/industrial-cameras/lw11059.php. Gray scale images are monochrome, according to accepted and widely used industry terminology. (Of course a thresholded/binary image like Walter showed is also monochrome because it has no color, though I'd call them binary or logical since they don't have any grays in them other than pure black or pure white.)
I want to separate the white pixel data from this binary image and convert it back to the rgb image for further use.
What I undestood (and certainly sure), you want to mask the binary image on RGB Image. No need to ectract the white pixels from Binary Image (just index position of white pixels is sufficient). You can directly apply it on RGB Image. In the following example, forced the pixels to those in RGB Image, where mask (Binary Image) represents as white pixels.
RGBImage=imread('image_test.jpg'); % This RGB Image
subplot(131),imshow(RGBImage),title('RGB Image'); grayImage=rgb2gray(RGBImage);bwImage=im2bw(grayImage,0.7); % This is your Result of Otshu Thresholding
subplot(132),imshow(bwImage),title('Binary Image-Mask');% Apply the Mask (Binary Image) on RGB
mask=cat(3,bwImage, bwImage,bwImage);% Force all those pixels to Black, where white pixels represent in Binary Image
RGBImage(mask)=0;subplot(133),imshow(RGBImage),title('RGB with Black White Mask Area');
Hope it helps!
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