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Image quality - JPG or PNG? |
um4r
Joined: Nov 19, 2005
Posts: 16
PM |
Ok so I made a picture for the screen of the K800i, saved it as .JPG but I'm sure I can get it better quality
I used Adobe Photoshop, saved it as a .jpg at 100% quality.
Should I be using .PNG or another image format to get the best quality on the screen? High res basically? |
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gseth
Joined: Sep 08, 2002
Posts: > 500
PM, WWW
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When saving jpeg in adobe save it with maximum 12 quality.
For no compression at all you can use png.
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[ This Message was edited by: gseth on 2006-08-08 17:57 ] |
um4r
Joined: Nov 19, 2005
Posts: 16
PM |
maximum 12 quality? What's that? I don't have that in my Adobe Photoshop - Quality settings go from 0-100
100 being Max |
jepherberich
Joined: Apr 25, 2006
Posts: 473
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If you already have a JPG file, you're not getting any better quality by saving it as a PNG, or another JPG even at 100% quality setting. You're stuck with what you have.
On the other hand, if you have a TIF file, you can save it as either JPG or as a PNG with least compression, and chances are the PNG will *mathematically* give you more detail (at a higher file size, of course).
JPG works by dithering off the details in an image that the eye wouldnt normally take notice of at a glance, similar to what MP3 is to WAV
Also, take note that the K800 is capped at a 262k colors, whereas JPG and PNG can have more than that. The K800 would then approximate the closest possible RGB value for the color that's off the 262 mark (read: you'd hardly notice the difference)
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Posted: 2006-08-08 18:27
