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[Rafael Tomazela <question662358@xxxxxxxxxxxxxxxxxxxxx>]

Question #662358 on Sikuli changed:
https://answers.launchpad.net/sikuli/+question/662358

Description changed to:
Hi,

I'm making a bot for a game (it's a match 3, like bejeweled/candy
crush), and I'm trying to recognize the state of the game in a grid by
looking at each of the grid cell and comparing with a set of predefined
images.

So what I do is to loop for each cell in the grid (x, y, width and
height) and check if each predefined image is in that region. The
problem is that it's quite slow because I think it tries to capture the
region each time I use .exists.

Since the game doesn't change while I don't make an action, I don't need
to recapture the screen for each cell, I can capture only once and then
search in regions of the image. Can I do that somehow?

Thanks.

Edit:

Oh, and I'm using the python script inside the editor. But I can use
something else like the java api if required.

Edit2:

Oh okay, actually I got it to work reasonably well, but I think there
must be a better way. If there is not, maybe it's useful for someone
with the same problem. What I did:

First I created a region, then I used `board = Screen().capture(region)` 
Then I got the java BufferedImage with `javaimg = board.getImage()`
Then from the java image, I could get a subImage with subimg =  javaimg.getSubimage(x, y, width, height)
Then, finally, I could recreated the ScreenImage with it ScreenImage(Rectangle(0, 0, width, height), subimg)
After that you can do what you want with the screen image. I used finder in my case.

It works reasonably fast!

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