I have a simple image. Layer 1 is a background, layer 2 is some text that is black. How can I easily change the color of this text once it's been committed to the layer? I prefer using the Curves dialogue. This way you get to keep your antialiasing, and you don't need to worry about masks ans such. There is probably a way that's even simpler, but I've found the curves dialogue usefull in lots of other areas, so I'm used to it.
I wonder if anyone knows how to copy an image out of Word doc into GIMP. Well, you can always do a screen shot. The problem is probably that word converts its images to a vector format (wmf or something strange like that). Check out the edit menu to see if it allows something like "save as bitmap" (I know mathematica has such a menu). Good luck. -James Smaby
This is a little complicated, but bear with me: 1: Desaturate the image (make greyscale while staying in RGB space) 2: Invert the image 3: Copy the image 4: Bring up layers dialogue 5: Add a layer and fill it with red 6: Add a mask to this layer 7: Paste into the mask 8: Apply the mask That should do it. If you want to save it as a transparent image (i.e. kill the background), use .png format as .gif only supports one alpha bit. Note that not all web browsers support 8 bit alpha alpha Mozilla and IE do if I recall correctly.
Try it with the gimp. It works last time I tried.
What did I wrong? How can I create a showed text stored in a tranparent gif where only the Text and the shadow should be visisble. gif only supports one bit alpha, as you figured out. If you want a picture with 256 bit alpha, use png. Note that support for this on web browsers is not very good (IE and mozilla support it fine), but it is the only way that I know of to do it. Conversly, you could flatten the image and delete just the background (leaving a light hue around the text), but then why even use a transparent gif? -James Smaby
PDF would be great, so what I now wonder, how good is really ps2pdf? It can't be Adobe Distiller but does it even does the work properly? Are vector-graphics converted to bitmaps somwhere in the process? I typeset all of my things with plain TeX. This is much nastier than LaTeX, but I learned it in a year or so. I also use ps2pdf quite often on the output, so that I can print from window boxes in the labs, and the output is just fine. The main problem with the postscript output is that the fonts are bitmaps, so you only have a set resolution. I set my default to 2400 dpi which is as good as any printer I've ever seen. Postscript figures are kept as postscript, though. You can use xfig to get your images, but I prefer using metapost (which is scriptable). You can use Gimp for making bitmaps as well, but you need a fast computer to work with the kind of resolution you will want (the file size is huge since postscript isn't compressed). Imagine a 4x4" picture with 1200 dpi resolution; that's 19200x19200 pixels, and thus hard on your computer. Of course if you only want greyscale it's not as bad (postscript does support color though). Next would be the ps2pdf conversion. This is good, although I think it only supports something like 600 dpi. Any vector input is not converted to bitmap, so resolution is only a problem with TeX and gimp input (most people post documents on the web at 300 dpi, so resolution isn't really a problem at all). pdf does use compression, so your big file sizes will be chopped down a bit. If you want to see the conversion in action, I have a few docs on my web site which I've used these different methods: http://virgo.umeche.maine.edu/thesis/source http://virgo.umeche.maine.edu/graph_paper http://virgo.umeche.maine.edu/homework http://virgo.umeche.maine.edu/labs http://virgo.umeche.maine.edu/quaternian http://virgo.umeche.maine.edu/photos/chemistry_awards/postscript They use TeX/metapost, TeX/xfig, TeX/gimp, metapost, and xfig. My xpdf doesn't display the fonts of TeX quite right and AFAIK gv only supports 16 colors but everything prints out perfect and displays right in Windows. So my recomendation is to bite the bullet and learn how how to typeset. It really isn't that bad, and your results will be so much more beautiful than anything that Distiller puts out. Hope this email wasn't too long... -James Smaby
Make sure your image is in RGB format before scaling it. If you are doing the scaling with an indexed image, antialiasing can't happen. You can also scecify cubic interpolation in your gimp preferences.
Are you converting to indexed before or after merging all layers? The less colors you give it the better job it can do, so flatten out the colors from non-visable layers.
...but I bloody don't want to download it. There are those sitting on a t3... Even on a T3, I still don't want to download (well, accept) SPAM just on principle. BTW, I don't like egroups.com for a simpler reason than advertisments. I just prefer .org and .edu domains and think orginizations should shy away from commersial services.
It says in the gimp manual. In the layers dialogue, save the layer name as foo(200ms) and layer foo will display for 200 miliseconds. Rather simple really.
For the bichromie use `Curves' switching `value' with different colors. Then just mess with the curve holders until you get what you want. two down one to go!
Have you messed with gnuplot? After reading the help (which is quite extensive) you can figure out how to modify your sin curve as you see fit. When you get something you like, just output to a .gif file and play with it in gimp. Certainly easier than coding in pascal ;)
Sure, see http://virgo.umeche.maine.edu/gimp
I say `pong' to your `ping'... Regardless, I don't think we're helping the original poster...I've been wondering if there is a MNG plug-in as well.
I gave an attempt at compiling this, but it is for gimp-1.0.4 and I am using the latest CVS version. You don't have to use the whole source tree to compile it (at least I don't think). Just compile with 'gcc -c `gimp-config --cflags` *.c' and you can link it using 'gcc `gimp-config --libs` *.o -o panorama'. Try it out and see if this does the job. -James Smaby
most probably a problem of both gif and the tools you used. Yes, I agree the tools were a poor choice. Since this doesn't solve your problem, just points out a new one, I'll try and be helpfull by suggesting a new set of tools. If all you want to do is add arrows, you can do that from the gimp just fine. If you are saving as a black and white picture (somehow I imagine you are), gif is fine. This probably will not give you strait edges without some tweaking, so it may be easier to create the scanned in image with xfig instead of switching between analog and digital. If there is good reason to make your arrows with xfig, you can import those arrows into gimp. If there is some reason that you want to go from gimp to xfig, so can save from the gimp in postscript, or perhaps even try to convert between bitmap and vector with autotrace: http://homepages.go.com/~martweb/AutoTrace.htm Hope that helped. -James Smaby
PLEASE DO NOT SEND ATTACHMENTS IN YOUR MAILS TO THE LIST. My (and not only mine) disk has limited capacity. Put the image somewhere on the web and send an URL only. And some of us check our email at the command line, and seeing all that garbled mime junk is rather annoying. If one gives a URL, I can paste it into netscape. A mime attachment needs to be saved, demimed, then viewed -- not something I bother doing unless it's important. Set up a geocities account for putting the pictures if you don't have access to web space. Thanks! -James Smaby
Well, I played around with it a little. Exactly how good do you want it? It is fairly easy to modify levels and colors to get something that looks okay. The date can be removed with the clone tool. Beyond that, it gets more difficult. One really has to rebuild the image from scratch to do a really good job (put different parts of the image in seperate layers, and then modify them seperately. If you have a whole role of these pictures, this could be an rather large project. -James Smaby
Is it just me, or are these CubicDesign tutorials a little too close to porn howtos? Must the object of the image touchup be a large breasted model? I don't know about most people, but I don't really want people thinking I'm looking at porn when I'm really reading about one of these tutorials. Perhaps somthing a little safer next time, like a bowl of fruit or a house. Am I too nieve to think that half-naked pictures are not the best thing to use as examples? If a person is necessary (like when flesh tones are required as in the latest tutorial), a closeup shot of Clinton or Gates might make a better picture (no, I do not want to see them in a bikini (although that might make for a funny tutorial), I mean a closeup of thier face). According to a slashdot observation, apache is the http server of choice of the porn industry; is the gimp the image editor of choice? -James Smaby
Go to Image - Colors - Curves Change [Value] to the different color channels, and move the ends of the curve around until you get what you want.
When I get into these kinds of problems, it sometimes helps to step back and take a systematic approach at fixing things. If the current gtk is getting in the way, get rid of it, and make it from scratch. First, uninstall the rpms (you don't seem to be having trouble with glib, so I would let that be). Perhaps rpms aren't the answer (since you're interchanging redhat with mandrake rpms), so I suggest compiling gtk from source. First make _sure_ all the other gtk stuff is gone by looking in your /usr filesystem for any gtk-like names ('locate gtk' or if you are mascochistic, 'find / -name gtk'), and get rid of them. I don't see why you can't just delete these files, but it may be wise to move them somewhere temporary just in case. I suggest querying the rpms and seeing what files they put where so that you have a better chance to get them all. Once your system is clean, compile gtk (following the same basic steps as for gimp perhaps specifying --prefix=/usr to ./configure if you want to put the libraries in /usr/lib instead of /usr/local/lib, but I suggest the default). Do a 'make install', and gimp should be all set to compile...hopefully. Good Luck! -James Smaby
./configure --host=i386-unknown-linux or ./configure --host=i386-unknown-linux-gnu I need to specify this for quite a few things on my alpha (well, with the obvious change). Do a "./configure --help" if you want to see all the options.
Boy, you're sure having a tough time. It seems your compiler is configured wrong (do you never compile things?). I've had similar problems on my SGI (I've actually given up on it). I suggest reinstalling the compiler if it doesn't work for other source as well (if it normall works, I don't know). Make sure that the compiler is for your architecture; i686 will not work on a normal pentium or K6II. Given that uname gives out i586, this could be your problem. Perhaps somebody else will have a better idea.
Well, you're original gtk was the mdk version, right? If this is the case, then your `upgrade' using the redhat binary didnt uninstall the mandrake version first. I suggest doing this by hand, then installing the redhat rpm. I thought both of these distributions put gtk in /usr, but you may want to see if your newer gtk-config script is in '/usr/local/bin' If this is the case, then you can probably just delete the old file, and hope things get found okay (that's how my system is set up, with an old version in /usr/lib, but I don't like it that way).
Uninstall the other programs first, or do rpm -ivh foo-bar.rpm --force
The gif format does not support a full alpha (transparency) channel, so if you want antialiasing, you need to know the color of your background first, merge it with your text, color-select the background color, then delete it. You should be left with the text surrounded by a little bit of the background color (actually closer to the text color). The png format does support a full alpha channel, although, only some browsers make use of this feature (mozilla and IE5.?). I don't rely on it, rather use one bit of transparency and keep the .xcf file around in case if I ever need to change the background color. I'm not getting in a debate as to what the best format is. Most antialiasing uses 8 to 16 colors, so you shouldn't get a loss in quality.
24bit = RGB flatten an alpha that might be there. Just save in tga format.
TeX Computer Modern font... I don't like some of the design characteristics of cm. The ff ligature is a little ghastly, and at a normal pointsize (cmr10) the font is a too `light' for my taste. I prefer the good old venitian font families (notice Google uses one of these in thier logo). It would be quite amusing seeing a complex math equation typeset with Cloister. I think that cm is good for math typesetting, but if I am going to write a letter to someone, it seems too formal. The reason I suggested Times is because ships with every OS that I know of. I also hate Times, and I cringe whenever I am given an article to read that uses it (when I'm a prof, I think I'll take points off for using ugly fonts:). [I actually use cmr on my website, using plainTeX, dvips, and gimp's ps importer]
I noticed that your entire post is right justified... One of my oddities. Makes writing emails a little more difficult (especially when writing with cat). I believe double spaces are correct for ending the sentences in fixed width fonts. One of these days I'm going to write a long email without the letter `e' in it... -James Smaby
Gamma correction? when I use some color for background of the image and the same color for the background of the HTML page and then I try to display the page in MSIE or Mozilla there is a slight difference in the background color
Is it just me, or do interlaced png's take alot longer to load up that non-interlaced? I'm on a T3, so rendering is normally where the bottleneck is. I use Netscape 4.73 on linux, and it annoys me to the point where I don't do any interlacing at all on my web page graphics. Is this just a netscape thing?
since I lost text-version ability Who says lynx doesn't support png's? Lynx actually does a much better rendering of png's than any `graphical' browser so far! Of course, it doesn't really do the rendering itself, but forks the displaying of it to xv or whatever the person installing lynx sets up as viewer for the images. (one could set that as the gimp, although that could get quite annoying loading up the gimp for each image one wants to see).
Have you tried playing with 'levels'?
Check out the plug-in at Image-Colors-Colormap Rotation... I just discovered this today, and think it would be a good tool for getting rid of redeye (just select the eyes first). -James Smaby
You could, of course, do it manually: copy the image into a second layer, flip this horizontally, add a layer mask, give the layer mask a linear gradiant. I beleive the make seamless plugin works in a similar way, only more complicated because it needs to tile in two dimentions. -James Smaby
You need a c++ compiler. This should be part of the gcc distribution. If you just want a working compiled plug-in, I got a working compile (lots of people have been having trouble getting their c++ compilers working right) and put it on my website at: http://virgo.umeche.maine.edu/gimp/binaries/ I also put homogenizer in the same directory as it is also written in c++, and people may have trouble getting it to compile as well. If you want a permenant fix, you can download the full gcc distribution at ftp://ftp.freesoftware.com/pub/sourceware/gcc/releases/ but first make sure you are using the latest glibc as well. -James Smaby
Just out of curiosity, for all those who are having touble with Resinthesizer, which compiler are you using? It works fine on my x86 box with ecgs, however, I'm having troubles on my alpha using gcc. At first I just assumed my problem was having a different architecture (linux programs always seem more stable on my x86 box), but after hearing that lots of people are having problems with it I wonder if it might be the compiler. gcc does tend to have trouble sometimes at making runnable code (perhaps it's more unforgiving). I am actualy getting segmentation faults on quite a few of my plugins. If I bring up the gimp, and pick the first plugin I come to (sethspin), I get a seg fault (but typing E at the console gimp is running on kills the plugin without crashing the gimp too) -James Smaby
I am actually using resynthesizer right now, and while I'm dissapointed as to its speed (um, can we say days to render?), the output is generally very nice and seems stable (at least on my x86 box). I recently emailed the maintainer to ask if it is supposed to be as slow as I am getting it. I think that make seamless is what I should be using (it works much faster), but this sometimes makes odd-looking tiles, and so resynthesizer is a good alternative (just let it run over night :) -James Smaby
I downloaded, read the README, and installed Resynth is nowhere to be found?! Should turn up in image/filters/map/resynthesize -James Smaby