Soul Reaver
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I figure there must be a good way to do this, but so far I haven't found out a way. Here's my situation:
I've scanned a whole bunch of playing cards on a flat-bed scanner. This has given me a number of digitial images, each of which consists of 9 cards on a white background.
What I'd like to do is make ONE image per card. Each of those images should have the exact same dimensions - filling the width and height of each card - and the background (the cards have rounded corners so you'd see a bit of background on a rectangular canvas) should be transparent. There should be no white left at the edges of the card in the digital image.
I'm a bit stuck as to how to do this however. I'm a real stickler for accuracy, and that makes this tough.
I'm guessing one way to do this would be to set up a template canvas of the right size and make some sort of mask or something that sets the rounded corners to be transparent, but I'm not sure if this is the best method (not to mention I'm not even 100% sure how I'd go about doing this accurately).
If I did the above, I assume I'd base the canvas on one of the existing cards first (since they're all supposed to be the same size/shape), but even that is tough - is there a generally-accepted method of getting rid of the white background space on a scan that doesn't involve laboriously selecting/deselecting with the lassoo tool? I've tried using colour range selection and the magic wand but both tend to be inaccurate (unless I'm doing something wrong?)
And then part of the problem is that the cards aren't all aligned the same on the scan (some are a bit crooked etc) - if I have to manually rotate each card and check by eye if it looks right it'll likely drive me insane well before I'm done. I'd need some way to 'snap' the cards into the canvas/mask automatically (or least get it very close). Is there some tool or method to do this in a time-saving manner?
Does anyone have any suggestions or tutorials for me to look at?
I've scanned a whole bunch of playing cards on a flat-bed scanner. This has given me a number of digitial images, each of which consists of 9 cards on a white background.
What I'd like to do is make ONE image per card. Each of those images should have the exact same dimensions - filling the width and height of each card - and the background (the cards have rounded corners so you'd see a bit of background on a rectangular canvas) should be transparent. There should be no white left at the edges of the card in the digital image.
I'm a bit stuck as to how to do this however. I'm a real stickler for accuracy, and that makes this tough.
I'm guessing one way to do this would be to set up a template canvas of the right size and make some sort of mask or something that sets the rounded corners to be transparent, but I'm not sure if this is the best method (not to mention I'm not even 100% sure how I'd go about doing this accurately).
If I did the above, I assume I'd base the canvas on one of the existing cards first (since they're all supposed to be the same size/shape), but even that is tough - is there a generally-accepted method of getting rid of the white background space on a scan that doesn't involve laboriously selecting/deselecting with the lassoo tool? I've tried using colour range selection and the magic wand but both tend to be inaccurate (unless I'm doing something wrong?)
And then part of the problem is that the cards aren't all aligned the same on the scan (some are a bit crooked etc) - if I have to manually rotate each card and check by eye if it looks right it'll likely drive me insane well before I'm done. I'd need some way to 'snap' the cards into the canvas/mask automatically (or least get it very close). Is there some tool or method to do this in a time-saving manner?
Does anyone have any suggestions or tutorials for me to look at?
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