Re: [Gimp-user] determining file type
I have some image files for which the extension may have been written incorrectly, i.e. they say .jpg but i suspect they are really png's. Can GIMP tell me the file type of a file it has opened. I know it examines the magic numbers to determine how to handle it so it must know. How can I make it tell me!!! Or if you know of an easy way to determine file type, without relying on the extension, from a non GIMP technique or tool. I sent you a message offline about how to do it using a text editor. But, I forgot some things If you use Linux or Mac, you can type file filenamehere and it will tell you a bunch of information about the file (including the type). If you use Windows and have GIMP associated with the file, you can right click, go to properties, then advanced and it will tell you much the same stuff as the file command under Linux and Mac ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] gimp crashed while saving
Quoting Geoffrey [EMAIL PROTECTED]: Peter Jon White wrote: Different than what? If you mean different than the three original posts asking for assistance, they got no response at all. Perhaps that's what you mean by better results? It was only when I made my critical post that I got any reply. But as I suggested in that post, it's all moot, since Photoshop works just fine. Great, then leave this list and find your way back to your Photoshop... Holy cow guys, you are both being overly rude. Calm down. I'm working through Peter's problems, I hope help him on this. I have so far been unable to reproduce his issue, even with the image he has provided, which BTW, counts as one of the more disconcerting images I've seen in a while. What do you do for a living? I suspect Peter didn't get a response on the first three times because none of us has seen what he saw, and he is not familiar with how to report bugs in a development environment. This is complicated by the fact that we are all _users _ here, just like him. We help each other because we are nice people. Most of us are business people too, so wild comments about needing to teach us about how things work in the real world are unwelcome. On the other hand, if we are bent on world domination, we have to be nice to the accolites. If we are bent on scratching our own itch (as I am), we have to be nice to our fellow man anyway. I install GIMP on new machines at least once a week as part of doing my work, and have never had it fail out of the box. Peter has had the opposite experience. Computers are like that. Shit happens. Jeff This message was sent using IMP, the Internet Messaging Program. ___ Gimp-user mailing list Gimp-user@lists.xcf.berkeley.edu http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
RE: [Gimp-user] Crisper screen shots
Quoting Kalle Ounapuu [EMAIL PROTECTED]: So maybe it's the compression you're choosing for the PNG? All your PNG's are RGB... so that has lossy compression. Are you putting it down a little bit? Err, there isn't any compression in PNG that is lossy. At all. PNG is lossless in all modes. So I'm not sure what you are talking about here. That renders much of the rest of the e-mail incorrect. Jeff This message was sent using IMP, the Internet Messaging Program. ___ Gimp-user mailing list Gimp-user@lists.xcf.berkeley.edu http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
Re: [Gimp-user] Trouble with layers from psd
Quoting Jakub Steiner [EMAIL PROTECTED]: On Thu, 2005-02-10 at 03:08 +0100, Simon Budig wrote: Eric Pierce ([EMAIL PROTECTED]) wrote: [MM Fireworks] He told me that the default file format is png! I called him a bold faced lier, but he swears up and down that png is the default format. I asked him about layers, and he said the pngs that Fireworks saves can DO LAYERS. I haven't seen it firsthand... is there any truth to this!? PNG can handle custom application specific chunks of data, so it is perfectly possible that Fireworks uses custom data blocks, not specified in the PNG standard. I have no idea if MM published these extensions, but a PNG file just using the standard chunks cannot handle multiple layers. This actually sounds very interesting. I really like the way Inkscape's native format uses the SVG with some extensions to store similar extra attributes of the image, yet it's correctly parsed and rendered by any SVG renderer. Copied from Firework's online manual... In addition to supporting PNG as an output format, Fireworks actually uses PNG as its native file format for day-to-day intermediate saves. This is possible thanks to PNG's extensible ``chunk-based'' design, which allows programs to incorporate application-specific data in a well-defined way. Macromedia has embraced this capability, defining at least four custom chunk types that hold various things pertinent to the editor. Unfortunately, one of them (pRVW) violates the PNG naming rules by claiming to be an officially registered, public chunk type, but this was an oversight and should be fixed in version 2.0. This message was sent using IMP, the Internet Messaging Program. ___ Gimp-user mailing list Gimp-user@lists.xcf.berkeley.edu http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
[Gimp-user] JPEG
I'll admit up front to not having followed the conversation so far. What quality levels you use on JPEG depends heavily on the type of data you are wanting to store, you quality requirements, space requirements, etc. As an example (worked up for a map conversation) http://broggs.org/~mcbeth/CivMap.png http://broggs.org/~mcbeth/CivMap.jpg The point of the demonstration was to show that JPEG isn't always smaller, and that it isn't always appropriate for your data. The newer JPEG preview in the GIMP save dialog helps a lot in making those kinds of decisions. If I am completely off topic, I'm sorry, I have to deal with inappropriate uses of JPEG files all the time in my work :( Jeff This message was sent using IMP, the Internet Messaging Program. ___ Gimp-user mailing list Gimp-user@lists.xcf.berkeley.edu http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
