Search found 79 matches
- 2013-10-23T09:58:40-07:00
- Forum: Users
- Topic: Optimal way to process jpegs
- Replies: 7
- Views: 6495
Re: Optimal way to process jpegs
Interesting- I can use tiff as the final file in my workflow, perhaps saving to tiff would be the best route then.
- 2013-10-23T08:48:51-07:00
- Forum: Users
- Topic: Optimal way to process jpegs
- Replies: 7
- Views: 6495
Optimal way to process jpegs
Processing jpegs is of course lossy, so I was thinking of converting the jpeg to IM's format (mif?), doing the operations, then saving as a jpeg- the worked mif would be discarded. Does this sound like a smart thing to do? And if so what is the best way to code it? Also the original image could be t...
- 2013-10-05T05:43:45-07:00
- Forum: Users
- Topic: Invalid color profile for colorless images in RGB colorspace
- Replies: 10
- Views: 10841
Re: Invalid color profile for colorless images in RGB colors
I'm not too sure why the original profile is being extracted in the first place- when the gurus around here wake up they will more than likely ask for your exact IM commands btw.
Have you tried running the original customer image through before doing any processing?
Have you tried running the original customer image through before doing any processing?
- 2013-10-05T05:03:24-07:00
- Forum: Users
- Topic: Invalid color profile for colorless images in RGB colorspace
- Replies: 10
- Views: 10841
Re: Invalid color profile for colorless images in RGB colors
Is it possible just to apply a specific printer profile to the image, or simply sRGB, AdobeRGB, whatever the printers want? So for example convert image.tiff ( processing stuff here ) -profile sRGB.icc outimage.tiff * I should actually say "it is possible" in that the above code is what I ...
- 2013-09-26T06:15:28-07:00
- Forum: Users
- Topic: -crop command quality loss
- Replies: 5
- Views: 7684
Re: -crop command quality loss
Not sure, but in most programs jpeg handling is lossy atm. I've never used that particular method personally.Pinch wrote:Do you know if PHP's GD cropping methods are lossless or lossy?
- 2013-09-26T05:43:25-07:00
- Forum: Users
- Topic: -crop command quality loss
- Replies: 5
- Views: 7684
Re: -crop command quality loss
jpeg is lossy- open>do an operation>save will degrade them. Not a good working format. I'm not sure what IM's default compression is, but you can make it highest quality with -quality 100% http://www.imagemagick.org/Usage/formats/#jpg I'm curious if the png is actually degraded or if IM just saves i...
- 2013-09-24T11:51:18-07:00
- Forum: Users
- Topic: What does turning alpha on and then off again do?
- Replies: 16
- Views: 14446
Re: What does turning alpha on and then off again do?
* as a side note, I wonder to what factor the interpolation method matters when scaling pixel art- I'm almost positive I had it set to "none" in Gimp, but it's worth looking into again.
- 2013-09-24T05:39:58-07:00
- Forum: Users
- Topic: What does turning alpha on and then off again do?
- Replies: 16
- Views: 14446
Re: What does turning alpha on and then off again do?
This is a pretty common problem, not sure its an IM bug- google "alpha white outline" and you'll see many, even very old, conversations about this. Gimp and apparently PS do the same- I've scaled sprite art with transparent backgrounds in Gimp and have had the same issue. http://www.pastea...
- 2013-09-17T08:19:03-07:00
- Forum: Users
- Topic: best downsampling method for DSLR photographs
- Replies: 273
- Views: 527614
Re: best downsampling method for DSLR photographs
OT, but I just checked on this the other day: http://libregraphicsworld.org/blog/entry/advanced-samplers-for-gegl-to-be-crowdfunded http://freedomsponsors.org/core/issue/78/add-other-samplers-that-properly-reduce-downsample-and-warp-images I've heard that downsizing in no more than 50% increments at...
- 2013-09-10T07:57:23-07:00
- Forum: Users
- Topic: difficult file- need help with identify readout
- Replies: 2
- Views: 3383
Re: difficult file- need help with identify readout
OK- what I did in the end to make it work was to change the density to 72 in IM, then gimp could open it. (It's nice to have IM in the arsenal for these situations )
- 2013-09-10T05:57:05-07:00
- Forum: Users
- Topic: difficult file- need help with identify readout
- Replies: 2
- Views: 3383
difficult file- need help with identify readout
Hey all, we have a file here that CS2 and Gimp won't open. I think this could be the reason (or maybe it's just too huge)
http://www.pasteall.org/pic/59103
Do all those zeros mean this is a corrupt file?
Thanks
http://www.pasteall.org/pic/59103
Do all those zeros mean this is a corrupt file?
Thanks
- 2013-08-29T10:42:01-07:00
- Forum: Users
- Topic: enable 0r disable OpenMP
- Replies: 14
- Views: 19098
Re: enable 0r disable OpenMP
When purchasing a machine to run IM would you say that it's better to buy a machine that's got the fastest processor possible rather than the amount of processors? Should I also invest in solid state drives? Does the amount of ram need to be considered also? Yes :D To me the only thing the IM proje...
- 2013-08-27T09:12:27-07:00
- Forum: Users
- Topic: RGB to CMYK inverted colors (script PHP)
- Replies: 5
- Views: 16085
Re: RGB to CMYK inverted colors (script PHP)
You probably should try using profiles http://forums.adobe.com/thread/285113 (This is just the first link I found, there must be hundreds more )
viewtopic.php?f=1&t=16572
viewtopic.php?f=1&t=16572
- 2013-08-23T06:45:43-07:00
- Forum: Users
- Topic: From sRGB to CMYK and gamma?
- Replies: 48
- Views: 58375
Re: From sRGB to CMYK and gamma?
Getting back to the original issue- what does the image look like after processing through IM sans any color manipulation? The big problem so far seems to be that they were coming out too dark. * I work at a photo lab, the biggest color hurdle is simply adjusting one's monitor to the printer. Beyond...
- 2013-08-21T14:09:55-07:00
- Forum: Users
- Topic: What does the "Alpha" key mean in identify output for a PNG?
- Replies: 28
- Views: 27331
Re: What does the "Alpha" key mean in identify output for a
Is the OP getting similar results to this? http://blender.stackexchange.com/questi ... rt-blender
For example in 3D work textures using transparency can have straight alpha or premultiplied alpha as a render option. A video http://vimeo.com/11064139
*cross posted
For example in 3D work textures using transparency can have straight alpha or premultiplied alpha as a render option. A video http://vimeo.com/11064139
*cross posted