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View Full Version : making background of JPG image transparent with Photoshop CS2



crmpicco
02-24-2008, 08:17 PM
I created a JPG with Photoshop CS2 as seen at the following URL: http://www.ayrshireminis.com/mini/en/galleries2.php - it's the "Add A Mini" button :-)

I have been updating the site and have changed the background colour of the table that the image is in, however I have now realised that I did not make the button with a transparent background :-(

Is it possible to use CS2 to edit the JPG to make the background transparent?

:o

Picco

digipete
02-27-2008, 01:17 AM
JPGs don't support transparent backgrounds - only GIFs and PNGs.

Can't you create a background layer for that graphic in CS2 the same color as the background in your table? Save that as a PSD file (which you should be doing anyway), then save for the web as JPG?

Pete

crmpicco
02-27-2008, 10:48 PM
thanks Pete, forgot you couldn't have transparent JPGs (doh!)

Picco

crmpicco
03-23-2008, 09:21 PM
I have been trying to change the background colour of the image that I have on my page at http://www.ayrshireminis.com/mini/de/galleries.php - the exact image is http://www.ayrshireminis.com/mini/images/addmini_de.jpg

I am using Photoshop CS2, I have opened the image and then highlighted the area that I want to make transparent (with the Magic Wand), then went to Help > Export Transparent Image and then went through the wizard and exported it as a GIF (for compatibility) - but the colours come out terrible - only 8bit, so nothing like what the image is originally. How can this be done in CS2?

Picco

crmpicco
03-24-2008, 03:52 AM
ok, i've also tried to save it as a PNG to begin with then save that image as a GIF, but it just destroys the colour and kicks it to 8-bit :-(

I know this can be done through the GIMP, but can it be done with PS CS2?

Picco

gnomeontherun
03-24-2008, 05:41 PM
You can change the export settings in either program to export to GIF or PNG. I don't use GIMP but in PS you do the Preview Export under file, and then you can change the settings as you wish.

PS: PNG 32 supports transparency, I'm not sure if the lower bits do or not.

_Aerospace_Eng_
03-24-2008, 05:57 PM
Use the magic background eraser tool. Here is your image at 8kb compared to your 31kb.



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