hi.i have a color image and use the crop function to select part of it.but Output image isnt color.why? how get a color image after cropping?
im=imread('5 2R.bmp');croppedImage = imcrop(im,[0.5 80.5 45 38]);imshow(croppedImage);MATLAB: Conver bmp image to color image
cropImage Processing Toolbox
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Is this?
RGB_image=imread('image_test.jpg');subplot(311);imshow(RGB_image);bw_image=im2bw(rgb2gray(RGB_image));subplot(312);imshow(bw_image);result=imfuse(RGB_image,bw_image);subplot(313);imshow(result);Detail documentation here
That image is a 2D image, an indexed image with a color map. It's not a 3D color RGB image. You need to convert it to an RGB image if you recognize it's an indexed image. Replace your loop with this:
for k = 1:numel(bmpFiles) fullInputFileName = fullfile(inputFolder,bmpFiles(k).name) [originalImage, colorMap] = imread(fullInputFileName); [rows, columns, numberOfColorChannels] = size(originalImage) if ~isempty(colorMap) && numberOfColorChannels == 1 % It's an indexed image with a colormap.
% Convert it to RGB color
originalImage = ind2rgb(originalImage, colorMap); [rows, columns, numberOfColorChannels] = size(originalImage) end fullOutputFileName = fullfile(outputFolder, bmpFiles(k).name); outputImage = imresize(originalImage, [100,50]); [rows columns numberOfColorChannels] = size(outputImage); if numberOfColorChannels == 1 % It's monochrome, so convert to color.
outputImage = cat(3, outputImage, outputImage, outputImage); end figure,imshow(outputImage); imwrite(outputImage, fullOutputFileName);end
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