Black isn’t black on Save for Web?

Jefferis NoSpamme wrote:

Not sure what the problem is but some images exported to the web under the "save for web" command, when the background color is black, are noticeably different from the web black.

Gifs, jpegs, what, exactly? When you say, "exported to the web", we need a little bit more information.

The Doormouse

—
The Doormouse cannot be reached by e-mail without her permission.

GIF exported to the web with black canvas color.

I think I may have found a problem though. I ran a brightness/contrast filter on a few images, but may have run it on the background layer by mistake in a couple of images…

Jeff

On 10/14/04 11:36 AM, in article ,
"The Doormouse" wrote:

Jefferis NoSpamme wrote:

Not sure what the problem is but some images exported to the web under the "save for web" command, when the background color is black, are noticeably different from the web black.

Gifs, jpegs, what, exactly? When you say, "exported to the web", we need a little bit more information.

The Doormouse

—

~~~~~~~~~~~~
Jefferis Peterson, Pres.
Web Design and Marketing
http://www.PetersonSales.com

—-== Posted via Newsfeeds.Com – Unlimited-Uncensored-Secure Usenet News==—- http://www.newsfeeds.com The #1 Newsgroup Service in the World! >100,000 Newsgroups —= East/West-Coast Server Farms – Total Privacy via Encryption =—

First:
"The Web’ doesn’t know anything about CMYK … it’s **ALL** RGB.

Second:
The GIF file format doesn’t know anything about CMYK … it’s **ALL** RGB.

Conclusion:
CONVERT all graphics to the RGB color space *before* you even think about doing anything "for The Web" with them.

"Jefferis NoSpamme" wrote in
message

Not sure what the problem is but some images exported to

the web under the

"save for web" command, when the background color is

black, are noticeably

different from the web black. Is this problem because some

images are being

saved from CMYK to web? Why does this happen to some but

not all? I think

all the images I’m using are in CMYK format.

Jeff
~~~~~~~~~~~~
Jefferis Peterson, Pres.
Web Design and Marketing
http://www.PetersonSales.com

—-== Posted via Newsfeeds.Com –

Unlimited-Uncensored-Secure Usenet News==—-

http://www.newsfeeds.com The #1 Newsgroup Service in the

World! >100,000 Newsgroups

—= East/West-Coast Server Farms – Total Privacy via

Encryption =—

"RSD99" wrote:

First:
"The Web’ doesn’t know anything about CMYK … it’s **ALL** RGB.

Second:
The GIF file format doesn’t know anything about CMYK … it’s **ALL** RGB.

Conclusion:
CONVERT all graphics to the RGB color space *before* you even think about doing anything "for The Web" with them.

That’s not entirely correct. The "Save for Web" option will automatically convert the files to RGB and the appropriate bit depth for the chosen web output (GIF or JPG). It will make all of the necessary conversions including color mode, flattening, removing excess channels, stripping excess file information, etc. regardless of what sort of input file is fed to it. And, it doesn’t make changes to the original file. It actually produces a copy for the web while leaving the original unchanged — a good thing.

If the original poster isn’t getting true black it’s probably because the CMYK input isn’t pure black to begin with.
——————————-
Tom

Unsolicited advertisements cheerfully ignored.

On Thu, 14 Oct 2004 15:58:20 -0400, Tom Thomas
wrote:

"RSD99" wrote:

First:
"The Web’ doesn’t know anything about CMYK … it’s **ALL** RGB.

Second:
The GIF file format doesn’t know anything about CMYK … it’s **ALL** RGB.

Conclusion:
CONVERT all graphics to the RGB color space *before* you even think about doing anything "for The Web" with them.

<snip>

If the original poster isn’t getting true black it’s probably because the CMYK input isn’t pure black to begin with.

Which is why you should convert and do a "save as" beforehand – unless you softproof an image, you’re not going to know what it looks like until *after* you do it otherwise.

—

Hecate – The Real One

veni, vidi, reliqui

My guess is your brightness adjustment is the culprit. CMYK color mode is probably a bad idea though. Have you sampled the so-called black to find the actual color (hex value)?

Corey 🙂

"Jefferis NoSpamme" wrote in message

GIF exported to the web with black canvas color.

I think I may have found a problem though. I ran a brightness/contrast filter on a few images, but may have run it on the background layer by mistake in a couple of images…

Jeff

On 10/14/04 11:36 AM, in article

,

"The Doormouse" wrote:

Jefferis NoSpamme wrote:

Not sure what the problem is but some images exported to the web under the "save for web" command, when the background color is black, are noticeably different from the web black.

Gifs, jpegs, what, exactly? When you say, "exported to the web", we need

a

little bit more information.

The Doormouse

—

~~~~~~~~~~~~
Jefferis Peterson, Pres.
Web Design and Marketing
http://www.PetersonSales.com

—-== Posted via Newsfeeds.Com – Unlimited-Uncensored-Secure Usenet

News==—-

http://www.newsfeeds.com The #1 Newsgroup Service in the World! >100,000

Newsgroups

—= East/West-Coast Server Farms – Total Privacy via Encryption =—

No, I haven’t. I receive these files from the print house and resize for the web and add a black canvas to them. I’m pretty sure the problem files had a brightness filter run on the backgrounds by mistake.

Jeff

On 10/14/04 9:29 PM, in article , "Peadge"
wrote:

My guess is your brightness adjustment is the culprit. CMYK color mode is probably a bad idea though. Have you sampled the so-called black to find the actual color (hex value)?

Corey 🙂

~~~~~~~~~~~~
Jefferis Peterson, Pres.
Web Design and Marketing
http://www.PetersonSales.com

—-== Posted via Newsfeeds.Com – Unlimited-Uncensored-Secure Usenet News==—- http://www.newsfeeds.com The #1 Newsgroup Service in the World! >100,000 Newsgroups —= East/West-Coast Server Farms – Total Privacy via Encryption =—

Jefferis NoSpamme wrote:

GIF exported to the web with black canvas color.

You can adjust and lock colors while in the "save for web" dialog. This will ensure that "black" is REALLY black, and not dark grey.

The Doormouse

—
The Doormouse cannot be reached by e-mail without her permission.

Thanks

On 10/14/04 11:13 PM, in article ,
"The Doormouse" wrote:

Jefferis NoSpamme wrote:

GIF exported to the web with black canvas color.

You can adjust and lock colors while in the "save for web" dialog. This will ensure that "black" is REALLY black, and not dark grey.
The Doormouse

~~~~~~~~~~~~
Jefferis Peterson, Pres.
Web Design and Marketing
http://www.PetersonSales.com

—-== Posted via Newsfeeds.Com – Unlimited-Uncensored-Secure Usenet News==—- http://www.newsfeeds.com The #1 Newsgroup Service in the World! >100,000 Newsgroups —= East/West-Coast Server Farms – Total Privacy via Encryption =—