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robo
Joined: 24 Apr 2012
Posts: 2
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 Posted: Tue Apr 24, 2012 8:59 am Post subject: Best and fast way to resize drawing images ? |
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I want to create a lot of drawing images, each one in four different sizes. 1.320 x 480 , 2. 640 x 960 , 3. 1024 x 748 , 4. 2048 x 1536 a. Shall I draw every size (four of them) from the beginning? b. Shall I draw 2 sizes 640 x 960 and 2048 x 1536 and resize the other two two? c. Shall I draw the first one in high resolution 2048 x 1536 and then resize the rest 3 or the other way round? |
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Auieos
Joined: 29 Jan 2010
Posts: 2019
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| Posted: Mon Apr 30, 2012 11:24 pm Post subject: |
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Yes, draw the highest resolution first and then make the smaller copies.
If you do it the other way around then it will lose quality. |
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robo
Joined: 24 Apr 2012
Posts: 2
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| Posted: Tue May 01, 2012 7:09 pm Post subject: |
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So, in that way, from highest resolution to smaller copies, will not lose quality at all? |
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Auieos
Joined: 29 Jan 2010
Posts: 2019
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| Posted: Thu May 03, 2012 1:20 am Post subject: |
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Yep, higher resolution reduced to lower resolution. |
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SCTRWD
Joined: 20 Jul 2011
Posts: 79
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| Posted: Thu May 03, 2012 8:56 am Post subject: |
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It's a common mistake that scaling down doesn't effect image quality. It does!
In fact - ANY transformation worsens image quality... It effectively blurs the image!
Think of it this way:
When you scale up you add a third pixel between the two neighboring original pixels - some weighed mean of the two, hence the blurring.
When you scale down you replace two neighboring original pixels with one, again - some weighed mean of the two, thus, again, you get the blurring.
Try to make your workflow so that you wouldn't have to resize anything at all.
Or, at least you wouldn't have to resize something more then once. Smart objects can help you here. |
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