PhotoShop 7.0 erratic behavior in JPG images

A
Posted By
AstroJockey
Dec 31, 2003
Views
266
Replies
8
Status
Closed
Recently upgraded from PS 6.0 to 7.0. Use PS extensively to finish digital astronomical images for posting to my personal website. Since upgrading, jpg images created from .psd to web-ready .jpg images appear "pixelated" (enlarged 300x) when viewed in webpage or ImageReady Viewer. They appear correctly in PS. If I reduce the size, I can get them (one so far)to be properly viewed in webpage. Size should be 1392×1040. One "fitted" when reduced to 900×400.

The only change is the PS re-install/upgrade.

Running IBM Netvista 128mg 1Ghtz machine with ME (all current Win updates) Web software is WebExpress. No change here.
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MM
Mac_McDougald
Dec 31, 2003
You must have some conflict in HTML code vs actual image size you’re making (or somesuch).

I mean, what ARE the actual pixel dimensions of the images supposed to be?
And, are the images actually those dimensions? Or are you making them smaller and "enlarging" them with HTML code, or what?

Where’s the website?

Mac
A
AstroJockey
Dec 31, 2003
Hello Mac,

The default size of the images are 1392px x 1040px. Some are smaller if I have to crop edges, but they are always at least 1300x 1000. As a rule, I do not change them from what is created in the PS processing.

Here’s the website:

<http://astrojockey.home.att.net/>

The two images created in PS 7.0 are (all others by PS 6.0 without the problem):

<http://astrojockey.home.att.net/impgem1.htm>

(resized to overcome problem)and,

<http://astrojockey.home.att.net/impgecoc.htm>

Thanks,

Paul
MM
Mac_McDougald
Dec 31, 2003
I guess I don’t understand the problem:

The two images created in PS 7.0 are (all others by PS 6.0 without the problem): <http://astrojockey.home.att.net/impgem1.htm>

There are two photo images on this page:
c8image.gif 192×231 pixels (why GIF?)
m11227a.jpg which is in reality 1244×914 pixels, but you have resized it with HTML call to 1000×735 (never a good idea, btw).

If you wanted this image to be 1000×735, why didn’t you simply MAKE it that size initially?

Sorry I don’t get what the prob *is*.

Mac
A
AstroJockey
Jan 1, 2004
The gif image is not the problem. The jpg images are the problem. It was resized as an effort to overcome the ugly picture. The original 1244 or 1392 (whatever it ends up when I create it in PS)is what I would place in the page in PS 6, and what will not work in PS 7. Here’s what I get when I create & load the image right out of PS 7:

<http://astrojockey.home.att.net/impgem1x.htm>
MM
Mac_McDougald
Jan 1, 2004
Still don’t understand.
Simply make the image the size you want in PS 7.
Maybe you had some workflow in 6 that you are not using in 7. Also don’t understand "ugly". The pic in your link doesn’t look any "uglier" than the one in your previous link. Color balance is somewhat diff is all.

I think you need to restate the actual problem in a step by step fashion.

Mac
A
AstroJockey
Jan 4, 2004
I have varified that the bad display occurs only on my PC. I don’t know how or why this is happening, but I will install PS7 upgrade and see if that does anything. It has been suggested that I am loading a bad image out of cache. Since it is a consistent problem over many images, I don’t see how that would cause the problem. But, I’ll see if that clears it up.
DM
dave_milbut
Jan 6, 2004
astrojockey, are you in true color (24 or 32 bit) mode? have you run adobe gamma and calabrated your monitor?
D
dpick
Jan 6, 2004
AstroJockey: Just a note to say that I liked your astro-photos very much. M51, M81/82, and Omega Centauri were especially nice. BTW, that is some pier you have there. I bet it was a PIA to pour!

This is the observatory I helped build (I’m not the one in the picture). <http://www.foxobservatory.org/observatory_info.htm>

Clear skies,

Dan

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