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#1
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Photoshop JPG conversion issues once again
I don't know what I'm doing wrong but my jpgs are brighter and have much
less contrast when viewing in a browser than when viewed in Photoshop. Workflow: Rebel XT RAW files Convert from CR2 to DNG Photoshop working space set to Adobe RGB Postprocess away PSD image looks great, save PSD version Convert to sRGB Save as or Save for web, looks great in Photoshop Open in Safari or Firefox, looks like hell. Case in point: http://www.photo.net/photodb/photo?photo_id=6040471 If I hadn't compensated by lowering the brightness and increasing the contrast before uploading that one it would have looked even more faded. What am I doing wrong? Greg -- The ticket******* Tax Tracker: http://www.ticketmastersucks.org/tracker.html Dethink to survive - Mclusky |
#2
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Photoshop JPG conversion issues once again
G.T. wrote:
I don't know what I'm doing wrong but my jpgs are brighter and have much less contrast when viewing in a browser than when viewed in Photoshop. Workflow: Rebel XT RAW files Convert from CR2 to DNG Photoshop working space set to Adobe RGB Postprocess away PSD image looks great, save PSD version Convert to sRGB Save as or Save for web, looks great in Photoshop Open in Safari or Firefox, looks like hell. Case in point: http://www.photo.net/photodb/photo?photo_id=6040471 If I hadn't compensated by lowering the brightness and increasing the contrast before uploading that one it would have looked even more faded. What am I doing wrong? Greg I have had similar problems, mostly with files viewed with Thunderbird. I have yet to find a solution. For the most part you should do all your editing and correction in RAW or converted DNG and then make the conversion to sRGB. I find reducing resolution in steps instead of one big cut helps reduce pixilation and artifacts. Also use Smart Sharpen filter with Luminosity blend mode as a final step so as not to affect any color/contrast/brightness corrections after resizing. I know using resolution down to 74 ppi is supposed to be OK, but I find keeping the pixel count up is going to give a better result. check: http://www.photography-cafe.com/gall...y_704p%7E1.jpg Saving for web using Imageready is not recommended if you are just uploading only use it if you are building a site. Good luck and keep trying, 'duck |
#3
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Photoshop JPG conversion issues once again
On Sat, 02 Jun 2007 23:34:55 -0700, "G.T."
wrote: Convert to sRGB Greg, at the risk of asking the obvious: are you really *converting* to sRGB? I ask because I had this very same query from someone on a web forum who thought he was converting to sRGB but it turned out he was actually *assigning* a sRGB profile to the image rather than converting to sRGB before using "save for web". The symptoms you're describing are identical to his, so... ;-) -- John Bean |
#4
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Photoshop JPG conversion issues once again
"John Bean" wrote in message ... On Sat, 02 Jun 2007 23:34:55 -0700, "G.T." wrote: Convert to sRGB Greg, at the risk of asking the obvious: are you really *converting* to sRGB? I ask because I had this very same query from someone on a web forum who thought he was converting to sRGB but it turned out he was actually *assigning* a sRGB profile to the image rather than converting to sRGB before using "save for web". The symptoms you're describing are identical to his, so... ;-) -- John Bean John, What's the difference in Photoshop between sRGB "assignment" and "conversion"? Thanks, Marcel |
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Photoshop JPG conversion issues once again
On Sun, 3 Jun 2007 07:01:11 -0400, "Celcius"
wrote: What's the difference in Photoshop between sRGB "assignment" and "conversion"? "Assignment" doesn't touch the image data, it simply assigns a profile to it. It's primarily intended to attach a profile to an image that is known to be (say) sRGB but has no existing profile. If you assign a sRGB profile to a (say) Adobe RGB image then the image will be incorrectly rendered because of the mismatch, resulting in this example in the image looking "washed out". "Conversion" alters the image data so that the colours will look appear unchanged when viewed in the new colour space, then assigns the matching profile. -- John Bean |
#6
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Photoshop JPG conversion issues once again
"John Bean" wrote in message ... On Sun, 3 Jun 2007 07:01:11 -0400, "Celcius" wrote: What's the difference in Photoshop between sRGB "assignment" and "conversion"? "Assignment" doesn't touch the image data, it simply assigns a profile to it. It's primarily intended to attach a profile to an image that is known to be (say) sRGB but has no existing profile. If you assign a sRGB profile to a (say) Adobe RGB image then the image will be incorrectly rendered because of the mismatch, resulting in this example in the image looking "washed out". "Conversion" alters the image data so that the colours will look appear unchanged when viewed in the new colour space, then assigns the matching profile. -- John Bean Thank you John, but I didn't express myself properly. What I meant was how in Photoshop you convert or assign, ie once your sRGB image is imported, what do you click on to convert rather than assign (click on image, mode, RGB color) ? I use CS2. Marcel |
#7
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Photoshop JPG conversion issues once again
On Sun, 3 Jun 2007 08:37:35 -0400, "Celcius"
wrote: "John Bean" wrote in message .. . On Sun, 3 Jun 2007 07:01:11 -0400, "Celcius" wrote: What's the difference in Photoshop between sRGB "assignment" and "conversion"? "Assignment" doesn't touch the image data, it simply assigns a profile to it. It's primarily intended to attach a profile to an image that is known to be (say) sRGB but has no existing profile. If you assign a sRGB profile to a (say) Adobe RGB image then the image will be incorrectly rendered because of the mismatch, resulting in this example in the image looking "washed out". "Conversion" alters the image data so that the colours will look appear unchanged when viewed in the new colour space, then assigns the matching profile. Thank you John, but I didn't express myself properly. What I meant was how in Photoshop you convert or assign, ie once your sRGB image is imported, what do you click on to convert rather than assign (click on image, mode, RGB color) ? I use CS2. The "mode" on the "Image" menu is nothing to do with colour spaces and profiles, instead it provides the means of converting between RGB and alternative representations like Lab or CYMK for example. The "Assign profile" and "Convert to profile" are on the "Edit" menu not the "Image" menu. -- John Bean |
#8
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Photoshop JPG conversion issues once again
"John Bean" wrote in message ... On Sun, 3 Jun 2007 08:37:35 -0400, "Celcius" wrote: "John Bean" wrote in message . .. On Sun, 3 Jun 2007 07:01:11 -0400, "Celcius" wrote: What's the difference in Photoshop between sRGB "assignment" and "conversion"? "Assignment" doesn't touch the image data, it simply assigns a profile to it. It's primarily intended to attach a profile to an image that is known to be (say) sRGB but has no existing profile. If you assign a sRGB profile to a (say) Adobe RGB image then the image will be incorrectly rendered because of the mismatch, resulting in this example in the image looking "washed out". "Conversion" alters the image data so that the colours will look appear unchanged when viewed in the new colour space, then assigns the matching profile. Thank you John, but I didn't express myself properly. What I meant was how in Photoshop you convert or assign, ie once your sRGB image is imported, what do you click on to convert rather than assign (click on image, mode, RGB color) ? I use CS2. The "mode" on the "Image" menu is nothing to do with colour spaces and profiles, instead it provides the means of converting between RGB and alternative representations like Lab or CYMK for example. The "Assign profile" and "Convert to profile" are on the "Edit" menu not the "Image" menu. -- John Bean Thank you John |
#9
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Photoshop JPG conversion issues once again
On Sun, 03 Jun 2007 13:49:08 +0100, John Bean
wrote: The "mode" on the "Image" menu is nothing to do with colour spaces and profiles Just to clarify - I meant to convey that the "mode" isn't the primary means of matching up colour spaces to the appropriate profile. It's nonsense to say it has nothing to do with it ;-) -- John Bean |
#10
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Photoshop JPG conversion issues once again
Celcius wrote:
"John Bean" wrote in message ... On Sun, 3 Jun 2007 08:37:35 -0400, "Celcius" wrote: "John Bean" wrote in message ... On Sun, 3 Jun 2007 07:01:11 -0400, "Celcius" wrote: What's the difference in Photoshop between sRGB "assignment" and "conversion"? "Assignment" doesn't touch the image data, it simply assigns a profile to it. It's primarily intended to attach a profile to an image that is known to be (say) sRGB but has no existing profile. If you assign a sRGB profile to a (say) Adobe RGB image then the image will be incorrectly rendered because of the mismatch, resulting in this example in the image looking "washed out". "Conversion" alters the image data so that the colours will look appear unchanged when viewed in the new colour space, then assigns the matching profile. Thank you John, but I didn't express myself properly. What I meant was how in Photoshop you convert or assign, ie once your sRGB image is imported, what do you click on to convert rather than assign (click on image, mode, RGB color) ? I use CS2. The "mode" on the "Image" menu is nothing to do with colour spaces and profiles, instead it provides the means of converting between RGB and alternative representations like Lab or CYMK for example. The "Assign profile" and "Convert to profile" are on the "Edit" menu not the "Image" menu. -- John Bean Thank you John Also if shooting in RAW only, the in camera selection of RGB or sRGB will have no effect. The workspace (RGB, ColorMatch RGB, ProPhoto RGB or sRGB) is selected (assigned) when converting with ACR, Lightroom or RAW conversion software of choice. If shooting JPEG, the in camera selection has to be lived with or converted to the workspace of choice in PS. 'duck |
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