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10/01/2002 01:09:33 AM · #1 |
Hi everyone... I hope this is not too silly of a question as I am brand new around here; and not much of a photographer at that. But, with what I have seen so far, I think this is good place to learn the art. Anyway, I was trying to resize a photo for the garbage contest and the rules say the pic must be 150kb or less. Does anyone have any idea how to get that small of a file size without reducing the picture quality? When I reduced to 640x480 I am still at a whopping 550kb. Thanks...
~Jeff |
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10/01/2002 01:21:54 AM · #2 |
The best procedure is to save your final, edited image in TIFF format -- "native size" in RGB is now 900kb (for 640x480). From there use the "Save As" or "Save As Copy" command to save in JPEG format with progressively smaller JPG quality settings until you get a file under the 150kb limit. Some image degradation is almost inevitible, but is somewhat dependent on the actual content of the image. For example, diagonal lines don't do well, and items with a lot of detail (plaid, leaves) will also require more compression.
What software/version/platform are you using?
* This message has been edited by the author on 10/1/2002 1:20:47 AM. |
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10/01/2002 02:11:15 AM · #3 |
Well I have 2 types of software... Corel Photo Paint and MGI Photo Suite.. I just learned a hard lesson though.. "Don't keep original photo files in the same folder that your saving the reduced quality files in."... lol now my original is gone... but that's ok.. I think what I have now will be ok for submission... anyway, what do you think would produced a better end result: reducing quality before resizing, or resizing before reducing quality? thanks for the help...
~jeff |
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10/01/2002 02:34:06 AM · #4 |
I would first resize (crop if appropriate) to the final size, then SaveAs in your program's "native" format. Perform any color or contrast adjustments there (on separate layers or un-doable actions ifpossible) and then take the result and again SaveAs in uncompressed TIFF format. Perform your final sharpening step here and use the procedure above to SaveAs in JPEG.
You also always want to keep your original files separate in case your entry is challenged (see rules on EXIF data and original files), but also because you may want to print it, and the DPC submission size is really too small... |
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10/01/2002 06:55:13 AM · #5 |
Personally I do things in this order:
1. Save a copy of my original
2. Crop
3. Colour/curves adjust
4. Save another copy - this one to be used for printing
5. Resize to 640x480
6. Sharpen (as little as I can get away with)
7. Save my DPChallenge version
In general I do my best to keep as MUCH information as I can in my image until the very last moment.
John
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