Canvas Size->Image Size? (Elements)

S
Posted By
siegman
Sep 30, 2005
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633
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2
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Closed

1) When you Resize the Canvas Size of a JPEG to a larger value in
Photoshop Elements and Save (or Save As) the resulting file without doing anything further, the image size for the file is now the same as the new enlarged canvas size, right? — is that correct?

(Putting this another way, does the file retain _any_ memory of the earlier, smaller image size?)

2) Since the added pixels initially all have the same value, the compressed file size may increase somewhat but should not increase proportionally when you do this — right?

3) Is there any way to do the above without suffering _any_ degradation of the original image due to image re-compression during the Save operation?

Thanks to any responders for helping educate me . . .
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CW
C Wright
Sep 30, 2005
On 9/30/05 11:57 AM, in article
, "AES"
wrote:

1) When you Resize the Canvas Size of a JPEG to a larger value in Photoshop Elements and Save (or Save As) the resulting file without doing anything further, the image size for the file is now the same as the new enlarged canvas size, right? — is that correct?
Correct.

(Putting this another way, does the file retain _any_ memory of the earlier, smaller image size?)
No, however you could crop down to the original image and basically recreate it.

2) Since the added pixels initially all have the same value, the compressed file size may increase somewhat but should not increase proportionally when you do this — right?
Probably.

3) Is there any way to do the above without suffering _any_ degradation of the original image due to image re-compression during the Save operation?
Yes, save your images as psd’s or tiffs.

Thanks to any responders for helping educate me . . .
N
nomail
Oct 14, 2005
AES wrote:

1) When you Resize the Canvas Size of a JPEG to a larger value in Photoshop Elements and Save (or Save As) the resulting file without doing anything further, the image size for the file is now the same as the new enlarged canvas size, right? — is that correct?

Correct.

(Putting this another way, does the file retain _any_ memory of the earlier, smaller image size?)

No.

2) Since the added pixels initially all have the same value, the compressed file size may increase somewhat but should not increase proportionally when you do this — right?

Right.

3) Is there any way to do the above without suffering _any_ degradation of the original image due to image re-compression during the Save operation?

Save as TIFF or PSD or another non-lossy format.

—
Johan W. Elzenga johan<<at>>johanfoto.nl Editor / Photographer http://www.johanfoto.nl/

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