MATLAB: Cropping image

digital image processingimage processingImage Processing Toolbox

how to crop image according to value x(column) and y(row)? i want to crop image and group it according to same row or same column.

Best Answer

To crop you can use imcrop(), or simply use indexing:

croppedImage = fullImage(row1:row2, col1:col2);

Related Solutions

MATLAB: How to store pixels of MxN bitmap image into MxN array

YourImage = imread('NameOfImage.tif');
grayImage = rgb2gray(YourImage);
level = graythresh(grayImage);
bwImage = im2bw(grayImage, level);

now bwImage is a binary image the same number of rows and columns as your original image.

MATLAB: How to crop 4 different images from a single image

[rows, columns, numberOfColorChannels] = size(theImage);
col4 = round(columns/4, columns/2, 3*columns/4);
if numberOfColorChannels == 1
  % Gray scale image.
  image1 = theImage(:, 1:col4(1));
  image2 = theImage(:, col4(1)+1:col4(2));
  image3 = theImage(:, col4(2)+1:col4(3));
  image4 = theImage(:, col4(3)+1:end);
else
  % Color image.
  image1 = theImage(:, 1:col4(1), :);
  image2 = theImage(:, col4(1)+1:col4(2), :);
  image3 = theImage(:, col4(2)+1:col4(3), :);
  image4 = theImage(:, col4(3)+1:end, :);
end

Then use imwrite to save each quadrant.

Best Answer

Related Solutions

MATLAB: How to store pixels of MxN bitmap image into MxN array

MATLAB: How to crop 4 different images from a single image

Related Question