Re: [Gimp-user] png compression

2005-04-14 Thread Joao S. O. Bueno Calligaris
On Thursday 14 April 2005 18:51, Jim Clark wrote: > I no-dithered and I crushed and I reduced my 10 images from 165084 > to 113479 without using any thumbnails. 50K isn't 100K, but it is a > significant reduction, and with no visible loss of image quality. > > Worked well--thanks for the pointers.

Re: [Gimp-user] png compression

2005-04-14 Thread Carol Spears
On Thu, Apr 14, 2005 at 03:16:30PM -0500, Jim Clark wrote: > > Is there something I should be doing to get a smaller file size? a not so obvious file size issue is whether or not your image has an alpha channel. if your png needs transparent areas then this is a needed channel. if your png doe

Re: [Gimp-user] png compression

2005-04-14 Thread Jim Clark
I no-dithered and I crushed and I reduced my 10 images from 165084 to 113479 without using any thumbnails. 50K isn't 100K, but it is a significant reduction, and with no visible loss of image quality. Worked well--thanks for the pointers. Jim Clark

Re: [Gimp-user] png compression

2005-04-14 Thread Sven Neumann
Hi, "Kalle Ounapuu" <[EMAIL PROTECTED]> writes: > So now I have 4 images which all look about the same, ranging > in size from 19419 to 30705. Quite a hit or miss process. One > would think indexing and crushing would yield the smallest > image, but it did not. There are lots

Re: [Gimp-user] png compression

2005-04-14 Thread Simon Budig
Jim Clark ([EMAIL PROTECTED]) wrote: > Things get odder and odder. > > I need to put 10 screen shots on a web page and was hoping to shave 100K > from the final page. > > So I took one of my images and indexed it. > Before index: 27004 > After index:30705. > > It got larger? This can happen

RE: [Gimp-user] png compression

2005-04-14 Thread Kalle Ounapuu
ginal Message-From: Jim Clark [mailto:[EMAIL PROTECTED]Sent: Thursday, April 14, 2005 5:05 PMTo: Kalle OunapuuCc: gimp-user@lists.xcf.berkeley.eduSubject: RE: [Gimp-user] png compression Things get odder and odder.I need to put 10 screen shots on a web page and was hoping to

RE: [Gimp-user] png compression

2005-04-14 Thread Jim Clark
Things get odder and odder. I need to put 10 screen shots on a web page and was hoping to shave 100K from the final page. So I took one of my images and indexed it. Before index: 27004 After index:30705. It got larger? I downloaded and installed a png crusher and ran it against both files:

RE: [Gimp-user] png compression

2005-04-14 Thread Kalle Ounapuu
There's lots of things you can do to make PNG's smaller.   If you save them as Indexed PNG's and reduce the colours, you may end up with smaller filesizes. Change the image mode to Indexed and it should prompt you for number of colours and other options.   After exporting the PNG, it still i

Re: [Gimp-user] PNG compression level 6 or 9 ?

2003-06-06 Thread David selby
Daniel Carrera wrote: On Wed, Jun 04, 2003 at 09:31:05PM +0100, David selby wrote: When saving PNGs gimp defaults to compression level 6. Is there any reason why I should not use compression level 9 ... Is there a reason why this is not the default ? Dave I understand that the higher the c

Re: [Gimp-user] PNG compression level 6 or 9 ?

2003-06-05 Thread Daniel Carrera
On Wed, Jun 04, 2003 at 09:31:05PM +0100, David selby wrote: > When saving PNGs gimp defaults to compression level 6. Is there any > reason why I should not use compression level 9 ... Is there a reason > why this is not the default ? > > Dave I understand that the higher the compression the long