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June 28, 2012
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Uploading photos and maintaining quality (goes from 12 MB to 4.5?)

:iconaiyrian:
Im trying to upload a picture and maintain the resolution as best I can after editing a bit. When I look at the image's information on the camera is says the picture is 12 MB but when I try uploading it(on photoshop elements), it becomes 4.5 MB instead? how can I get it to upload the higher quality picture? does anyone know? Thanks :)
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:iconaiyrian:
Okay well I'm about to go on vacation, so sorry if I don't reply right away! I'll try and get on to check though :)
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:iconalalem:
have u tried .png ,, just for uploading format ..

it's known as a quality maintaining format ..
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:iconanvh:
png is really not meant for real life images, for drawings they are great though.
It's better to save in tiff with compression if you want to keep all the quality.
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:iconalalem:
haven't used te tiff b4 .. but i'll try it ..

thnx ^^
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:iconaiyrian:
no, but its not uploading it to a website thats the problem, its onto my computer
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:iconalalem:
donno about that .. well try the tiff as fellow said :p
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:iconrogue-designer:
~rogue-designer Jun 29, 2012  Professional Photographer
1. Are you shooting in RAW or JPG?

2. How are you transferring the images to the computer?
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:iconaiyrian:
jpeg and plugging the memory card into the computer
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:iconrogue-designer:
~rogue-designer Jul 1, 2012  Professional Photographer
Ok - there is a difference between image size and file size.

What you are seeing is that discrepancy. There is 12mb of image data (which the camera shows, and which a photo editor like Photoshop uses).

BUT - JPG is a compressed format, so that 12mb gets compressed down to varying degrees, depending on the image data, and the level of compression selected. So your FILE sizes are smaller, but the IMAGE data size remains the same.

If you wish to avoid this, you'll need to shoot in an uncompressed format - either RAW or TIFF.

With that said - you are not really getting lower quality images with JPG, just that too much compression (or too much repeated compression), can become an issue if you don't keep an eye on it.
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:iconaiyrian:
Thank you, this is really helpful :)
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