Crop Images With Specified Values From Each Direction

I want to crop a series of '.bmp' images. Is there a way to crop images by putting 4 variables indicating how many pixels you want to cut from each side (from each direction; top, bottom, left, and right) of the image? I want the users to change the amount they want to cut from each of the four sides and basically shrink down the image accordingly. Thanks for the help in advance.

[Dyuman Joshi]

imcrop could be helpful if you have the Image Processing Toolbox.

[Walter Roberson]

@Dyuman Joshi

Notice this in the imcrop() documentation:

The actual size of the output image does not always correspond exactly with the width

and height specified by rect. For example, suppose rect is [20 20 40 30], using the

default spatial coordinate system. The upper left corner of the specified rectangle

is the center of the pixel with spatial (x,y) coordinates (20,20). The lower right

corner of the rectangle is the center of the pixel with spatial (x,y) coordinates

(60,50). The resulting output image has size 31-by-41 pixels, not 30-by-40 pixels.

Answer 1

[Walter Roberson]

newImage = OriginalImage(1+TopRowsToSkip:end-BottomRowsToSkip, 1+LeftColumnsToSkip:end-RightColumnsToSkip, :);

where you should probably let all the values such as TopRowsToSkip start at 0 (indicating nothing to be skipped)

I would not recommend using imcrop() for this purpose.