how to edit tiffs without zuking up the alpha
Hi, I've got tiffs created in Photoshop that I need to crop using Gimp. They have alpha. If I open the up in Gimp, use the crop tool, then resave, the next time I open them I discover that only the alpha-mask has been saved in place of the rgb data. before save: http://24.16.52.60/~dm/before.tif after save: http://24.16.52.60/~dm/after.tif Needless to say, this is not what I want. How do I do what I want? (Please CC me on replies, as I don't subscribe to gimp-user)
Transparency Selection
I realize this is probably a newbie question ... Is there any way to select the transparent section of an image? What I am trying to create is an image that will look decent on any color background (hence the transparency). I want the image to have a *cut out* appearance so I was going to select the transparent portion and use the drop shadow script. Or, is there a better way to do this? Thanks! CK
RE: Transparency Selection
Sorry about the noise. Right after I sent this message out, I found a way to do it, though not pretty. I kept selecting the regions I wanted the drop shadow to appear on, then inverted the selection. I finally got the look I wanted, but I also ended up with a bunch of transparent squares with drop shadows onto transparent backgrounds... Thanks! CK -Original Message- From: Kulish, Chris (Des Moines) [mailto:[EMAIL PROTECTED]] Sent: Friday, June 16, 2000 1:51 PM To: [EMAIL PROTECTED] Subject:Transparency Selection I realize this is probably a newbie question ... Is there any way to select the transparent section of an image? What I am trying to create is an image that will look decent on any color background (hence the transparency). I want the image to have a *cut out* appearance so I was going to select the transparent portion and use the drop shadow script. Or, is there a better way to do this? Thanks! CK
RE: Transparency Selection
actually, it's much easier... Right click on the layer you want to select, hit "alpha to selection". Then invert the selection. n Fri, 16 Jun 2000, Kulish, Chris (Des Moines) wrote: Sorry about the noise. Right after I sent this message out, I found a way to do it, though not pretty. I kept selecting the regions I wanted the drop shadow to appear on, then inverted the selection. I finally got the look I wanted, but I also ended up with a bunch of transparent squares with drop shadows onto transparent backgrounds... Thanks! CK -Original Message- From: Kulish, Chris (Des Moines) [mailto:[EMAIL PROTECTED]] Sent: Friday, June 16, 2000 1:51 PM To: [EMAIL PROTECTED] Subject: Transparency Selection I realize this is probably a newbie question ... Is there any way to select the transparent section of an image? What I am trying to create is an image that will look decent on any color background (hence the transparency). I want the image to have a *cut out* appearance so I was going to select the transparent portion and use the drop shadow script. Or, is there a better way to do this? Thanks! CK --Ames -- "Fine! Then I'm just gonna take my laptop and go home!!!" Amy L. Abascal [EMAIL PROTECTED] Web Design Chic, VA Linux Systems www.valinux.com Web Design Chic, Silicon Valley Linux Users Groupwww.svlug.com --
RE: Transparency Selection
That worked, but with one problem. I am trying to make an image with multiple depths which will require me to use the drop shadow multiple times. Or will it? Thanks CK -Original Message- From: Amy [mailto:[EMAIL PROTECTED]] Sent: Friday, June 16, 2000 5:57 AM To: Kulish, Chris (Des Moines) Cc: [EMAIL PROTECTED] Subject:RE: Transparency Selection actually, it's much easier... Right click on the layer you want to select, hit "alpha to selection". Then invert the selection. n Fri, 16 Jun 2000, Kulish, Chris (Des Moines) wrote: Sorry about the noise. Right after I sent this message out, I found a way to do it, though not pretty. I kept selecting the regions I wanted the drop shadow to appear on, then inverted the selection. I finally got the look I wanted, but I also ended up with a bunch of transparent squares with drop shadows onto transparent backgrounds... Thanks! CK -Original Message- From: Kulish, Chris (Des Moines) [mailto:[EMAIL PROTECTED]] Sent: Friday, June 16, 2000 1:51 PM To: [EMAIL PROTECTED] Subject: Transparency Selection I realize this is probably a newbie question ... Is there any way to select the transparent section of an image? What I am trying to create is an image that will look decent on any color background (hence the transparency). I want the image to have a *cut out* appearance so I was going to select the transparent portion and use the drop shadow script. Or, is there a better way to do this? Thanks! CK --Ames -- "Fine! Then I'm just gonna take my laptop and go home!!!" Amy L. Abascal [EMAIL PROTECTED] Web Design Chic, VA Linux Systems www.valinux.com Web Design Chic, Silicon Valley Linux Users Groupwww.svlug.com --
Re: how to edit tiffs without zuking up the alpha
I tried downloading the two files to play with them. The second file 'after.tiff' is fine, but opening 'before.tiff' using the gimp gives errors - about unknown data segments. This is probably because Photoshop is using a newer(or non-standard) file format than the GIMP. The file itself was created using Photoshop version 5. I tried using GIMP version 1.1.23 to open it, what version is Dave using? Dave Morse requested all repies are CC'd to him, his address is: [EMAIL PROTECTED] __ Do You Yahoo!? Send instant messages with Yahoo! Messenger. http://im.yahoo.com/
Re: how to edit tiffs without zuking up the alpha
Your aim was to use the GIMP to crop the pictures, but did you try anything else? I tried some color related operations (color compose) and it returned "Compose: Image is not a gray image (bbp=3)". The bbp bit means bits per pixel (I think), and don't know if this has any real bearing on what your doing. I tried some other color operations, most return "FUNCTION NAME operates only on RGB color drawables. To me this suggests the GIMP doesn't like something about these files, rather than a problem when saving. You must tell me what the image is supposed to be, it doesn't look very recognisable to me. My knowledge of the GIMP is not very deep, I'm not an image artist, developer or anything - I just like playing with the GIMP occasionally. Dave, you obviously know more than me but I hope my suggestions help guide you in the right direction. __ Do You Yahoo!? Send instant messages with Yahoo! Messenger. http://im.yahoo.com/
