transparency between crop and actual image

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chess 2014-8-5

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https://ww2.mathworks.cn/matlabcentral/answers/146431-transparency-between-crop-and-actual-image

评论： Image Analyst 2014-8-6

Hi I have an image which I cropped it using imcrop and then modified it a little bit, then I superimposed the cropped image on the actual image but I would like to know how I can get rid of side of smaller triangles (the one that contains the red part). Or I should say how can I make the crop image in upper left corner be transparent to actual image.

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回答（1 个）

Image Analyst 2014-8-6

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/146431-transparency-between-crop-and-actual-image#answer_147534

See these:

http://blogs.mathworks.com/steve/2009/02/18/image-overlay-using-transparency/

http://www.mathworks.com/matlabcentral/answers/104889-how-to-overlay-a-foreground-image-over-a-background-image

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chess 2014-8-6

编辑：chess 2014-8-6

No hope it does not remove the boundries.

Image Analyst 2014-8-6

Are your images different sizes? That image does not look like an overlay, at least you didn't color it if it is. Attach your original image, and the image you want overlaid on top of it. Maybe you can just average the two images instead?

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