MATLAB: How to tile an image

repmattiling

Tiling an image: The image is broken up into a grid of 4 sub-images. Each of the 4 sub-images is a scaled down version of the entire image that is either (1) image, (2) flipped horizontally, (3) flipped vertically or (4) flipped both. The resulting image should be tiled such that:(1)(2) (3)(4) I have to put this image in subplot(2,4,8).

Using Repmat(A,2,2), I am able to tile the image A in a 2,2 matrix. I am not sure how to change the images.

Best Answer

Don't use repmat. Just create four images (upperLeftImage, upperRightImage; lowerLeftImage, lowerRightImage) using flipud(), fliplr(), transpose ', imrotate(), or similar commands, then use this line to stitch everything together

tiledImage = [upperLeftImage, upperRightImage; lowerLeftImage, lowerRightImage];

Of course you have to make sure that the number of rows or columns at the "seams" match up.

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MATLAB: Concatenating three images into one image

Try this:

stitchedImage = [F, upperRightImage; lowerLeftImage, lowerRightImage];

Put whatever image you want into the appropriate location. You may want the lower right image to be a totally white image.

MATLAB: How to reconstruct an image

Stitch them together in whatever order you want. The pattern is

[upperLeft, upperRight; lowerLeft, lowerRight]

To do what you tried to do, you'd do this:

scrambledImage = [image_bottom_left, image_bottom_right; image_top_left, image_top_right];

so that now the bottom left of the old image is the upper left of the new image, etc.

Best Answer

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