Re: [Gimp-user] lossless cropping?
Hi, There is a very nice *free* picture viewer cum editor called irfanview, which will do lossless cropping and rotation of jpeg images (not sure about the resizing, though). I think it's at www.irfanview.com, but if this isn't right you can find it very easily by googling irfanview and follow the link to official homepage. You would need to download irfanview and plugins separately and install both, irfanview first. Not sure if there are versions for OS other than windows, though - you'd have to check this... Hope it helps, /Gary Message: 4 Date: Sun, 01 Feb 2009 19:46:10 +0800 From: zhangwe...@realss.com Subject: [Gimp-user] lossless cropping? To: gimp-user gimp-user@lists.xcf.berkeley.edu Message-ID: 49858b82.7020...@realss.com Content-Type: text/plain; charset=UTF-8 Hello. I read from an article which says jpeg images can be cropped losslessly. I searched lossless gimp crop on google without good findings. Can gimp do lossless cropping? If not, what software (better has an GUI because I am not commandline guru) on Linux can be used to do lossless cropping? Thanks. -- Real Softservice Huateng Tower, Unit 1788 Jia 302 3rd area of Jinsong, Chao Yang Tel: +86 (10) 8773 0650 ext 603 Mobile: 159 7382 http://www.realss.com ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
[Gimp-user] Error on install: Entry Point Not Found
Have you tried copying the file and then renaming the copy? Seems to me that that should work...Not ideal I know, but as a workaround, should save a lot of fiddling about. /Gary Okay, I renamed the file libxml2.dll, in my WINDOWS/System32 directory. Gimp now starts up. I have discovered that renaming the file causes Systran (a popular commercial translator) to fail to start. So now, I have to rename the file before starting Gimp, then rename the file back before starting Systran. This is not absolutely fabulous. Is there a better way? -- SChan ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
[Gimp-user] Layered TIFF?
Hi, For me, one of the greatest hindrances to migrating to GIMP is its inability to handle layered TIFF files. I have a large number of such files, with zip compression, and I really don't wan't to have to change this format, because for one thing my preferred picture viewer can handle layered TIFF files but can't handle GIMP format (at least, not yet. I have put in a request to the author and it is possible that in future this capability may be added) and for another thing, TIFF with zip compression seems to provide the most compact lossless format for layered files. Any chance that the ability to load/save layered TIFF files (with zip compression) might appear in a future version of GIMP? /Gary ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Levels tool with Layers
It seems to me that gimp works a bit differently from photoshop. In photoshop (actually, I'm still using 'elements-2', can you believe? Although I have got Richard Lynch's excellent hidden power installed which releases a lot more of the underlying photoshop 7 functionality - and the book was great for learning about image manipulation in general - but I digress...) In photoshop you can add an adjustment layer, which operates on the layer underneath it. And you can go on adding new adjustment layers, and then going back to earlier ones to tweak the parameters - so I might have a base image with a brightness/contrast adjustment layer above it and a hue/saturation layer above that. Both adjustment layers operate on the base layer, I can go back to the middle (in my eg, the brightness/contrast), tweak the parameters and view the result - with the effects of the upper hue/sat layer still applied. Correct me if I'm wrong, please, but it seems that in gimp I have to make a copy of the base layer and apply any adjustments to the copy; and repeat this for any new adjustment. This seems to be much less flexible, as subsequent changes to the middle layer would be obscured by the upper layer? The photoshop method appears to be far more flexible. I was thinking that doing things this way might also have a beneficial effect on the file size, though judging by the size of photoshop format files, I doubt this is actually the case. But I tend to save as layered tiff with zip compression applied to the layers, which makes them much smaller and preserves much of the layer information (though things like selections won't be saved. But I can live with that). These, I guess, are my main reasons for hanging on to photoshop rather than migrating to gimp. So if I'm wrong, I'd love to know... /Gary Ok, perhaps I'm on the right track, now. Someone tell me if I'm moving in the right direction. Seems if I copy the background layer leaving the mode normal, I can then perform most any operation on that new level and give it a name suggestive of that operation. Then, make a copy of that new level, and perform some other operation on the new level, rename it to suggest that second operation, and so on. Is that how it works? Seems to give me a result that I can follow up and down the stack by turning on and off the visibility of the levels in sequence (or out of sequence, for that matter. I feel like I'm on the right track. Would appreciate verification and/or additional advice. ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Levels tool with Layers
Thanks for the info. It seems exciting things are on the horizon. I eagerly await with much anticipation. /Gary Correct me if I'm wrong, please, but it seems that in gimp I have to make a copy of the base layer and apply any adjustments to the copy; and repeat this for any new adjustment. This seems to be much less flexible, as subsequent changes to the middle layer would be obscured by the upper layer? This is certainly true; all of your points are true. This is being worked on. However, the specific idea of 'effect layers' is regarded as severely broken (basically cause it makes nonsense of the whole layers concept: all layers have content, but oh! effect layers don't. all layers have blending mode, but oops! effect layers don't. it's user-unfriendly in this marked inconsistency.) The implementation I believe we are currently aiming for is instead oriented around the idea of being able to attach any number of effects to a given layer group (btw, martin nordholts is doing some great work on layer trees presently and in the last few months.. they are shaping up well.) The photoshop method appears to be far more flexible. I was thinking that doing things this way might also have a beneficial effect on the file size, though judging by the size of photoshop format files, I doubt this is actually the case. Photoshop format generally saves a lot of cached data -- for instance, there is a thumbnail for each layer, and a composited version of the image rendered at full size. But I tend to save as layered tiff with zip compression applied to the layers, which makes them much smaller and preserves much of the layer information (though things like selections won't be saved. But I can live with that). ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Multi-page TIFF
Alternatively, if you don't have microsoft office and don't want to fork out for it, you can always download and install the free image browser-cum-editor irfanview. That will enable you to easily create a multi-page tiff file from a set of images. /Gary ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
[Gimp-user] Layered TIFF
A long(ish) time ago I wrote: Any chance that the ability to load/save layered TIFF files (with zip compression) might appear in a future version of GIMP? and Michael Schumacher replied: Basically the tiff plug-in is waiting for someone to add this. Maybe you do want to have a try? I'm thinking I might like to have a go at this sometime, if I get the chance. There's a lot I will need to find out before I can even make a start, so don't hold your breath! :-) 1) I'd like to try to do this in python. But I'll need to learn it first. That shouldn't be a problem, I have the info, just a matter of getting round to it. But I'd like to ask: is that the best thing to use for writing a plug-in? Or at least, an acceptable thing? I want to learn python sometime in any case as it seems to be used rather widely for add-ons to various packages, eg blender. 2) I'd need to learn about the TIFF format. Again, shouldn't be a problem; I've recently downloaded the definition from Adobe's site. Again, just a matter of getting round to it :-) 3) What I will need is specific information about writing for the gimp interface - details about how the layers would be accessed, etc. I'm not sure where would be the best place to look for information like this. And maybe this list won't be the best place for techie questions if I do get started - maybe there's a more suitable list (?) Any helpful response to (3) would be greatly appreciated! Thanks, /Gary ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Layered TIFF
Thanks for the info, Michael! I'll start checking out those sites. /Gary ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Layered TIFF
Hello Daniel, thanks for your reply, which I somehow managed to miss before. There are lots of plugins in python, but I don't know if it's the best choice for file i/o plugins, since if you do a good job, it might be included into GIMP by default, and Python isn't installed everywhere. I'm not sure about the speed difference compared to C since reading/writing the file should be the bottle neck in most cases. Michael also pointed out that existing TIFF plugins are in C. So I'll also be looking for a good, free C compiler for windows (XP). Do you know of any? 2) I'd need to learn about the TIFF format. Again, shouldn't be a problem; I've recently downloaded the definition from Adobe's site. Again, just a matter of getting round to it :-) And/or have a look at other open source projects (with a compatible license!) that can handle multi-layer tiff images. (ImageJ, possibly ImageMagick, exiv2 etc.) An excellent suggestion - thanks! I'll try to find some. Thanks for you trying this project :-) Daniel Well, I haven't, yet! It'll be some time - like I said before, don't hold your breath! :-) ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
[Gimp-user] brush precision
hi, some time ago there was a thread about changing the brush icon between showing the brush size and a precise crosshair. I can't seem to locate that thread, but if I remember rightly it was suggested that the change should happen at mouse-click, or when holding the mouse button down. Now I've just discovered, quite fortuitiously, that in photoshop (at least in Elements 2, so presumably also in PS7, on which the elements code was based) that you can toggle between these icons (i.e. brush outline vs. crosshair) using the caps-lock key. Maybe that might be a good idea for GIMP also? /Gary ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] brush precision
Oh. That's probably why I couldn't find the thread - I must've been looking in the wrong archive Thanks, Sven; I will post the suggestion there /Gary Maybe you should post that suggestion to the gimp-developer list. There was a discussion about the brush outline recently and your suggestion might turn out to be useful for that. ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
