(Fedora-18; 64-bit; all desktops)
On my old Redhat-9 system, I had this great tool "xv" which I used quite often to "colorize" raw weather satellite images. It made doing that very easy, especially with the three GUIs that let me graphically vary the red, green, and blue intensities independently using the "RGB Modification" graphs in the "color editor" window. But when I launch the "Software" tool on my system and look for xv, the only thing I find is actually just a short script to launch the real xv. How do I get xv for my 64-bit Fedora-18 system? Or does Fedora-18 come with something else with the same functionality? If yes, what?
thanks, Bill.
On 07/09/13 22:35, William Mattison wrote:
(Fedora-18; 64-bit; all desktops)
On my old Redhat-9 system, I had this great tool "xv" which I used quite often to "colorize" raw weather satellite images. It made doing that very easy, especially with the three GUIs that let me graphically vary the red, green, and blue intensities independently using the "RGB Modification" graphs in the "color editor" window. But when I launch the "Software" tool on my system and look for xv, the only thing I find is actually just a short script to launch the real xv. How do I get xv for my 64-bit Fedora-18 system? Or does Fedora-18 come with something else with the same functionality? If yes, what?
xv is in the rpmfusion repositories.
xv-3.10a.jumbopatch.20070520-18.fc18.1.x86_64 : Visualisateur sous X pour : quasiment tous les types d'images Repo : rpmfusion-nonfree-updates Matched from: Filename : /usr/bin/xv
On Tue, Jul 09, 2013 at 07:35:21AM -0700, William Mattison wrote:
On my old Redhat-9 system, I had this great tool "xv" which I used quite often to "colorize" raw weather satellite images. It made doing that very easy, especially with the three GUIs that let me graphically vary the red, green, and blue intensities independently using the "RGB Modification" graphs in the "color editor" window. But when I launch the "Software"
xv isn't open source -- it's shareware. So, we can't include it.
tool on my system and look for xv, the only thing I find is actually just a short script to launch the real xv. How do I get xv for my 64-bit Fedora-18 system? Or does Fedora-18 come with something else with the same functionality? If yes, what?
You can do per-channel color manipulation easily in Gimp.
On 07/09/2013 10:35 AM, William Mattison wrote:
(Fedora-18; 64-bit; all desktops)
On my old Redhat-9 system, I had this great tool "xv" which I used quite often to "colorize" raw weather satellite images. It made doing that very easy, especially with the three GUIs that let me graphically vary the red, green, and blue intensities independently using the "RGB Modification" graphs in the "color editor" window. But when I launch the "Software" tool on my system and look for xv, the only thing I find is actually just a short script to launch the real xv. How do I get xv for my 64-bit Fedora-18 system? Or does Fedora-18 come with something else with the same functionality? If yes, what?
thanks, Bill.
1. With some off-line help from Ed Greshko, I got xv installed and working. I thank Ed for his help. I hope that the strong (super?) typhoon heading towards that area does not cause him and his family significant trouble.
2. I also tried the Gimp as per Matthew Miller's suggestion. I found the functionality that I believe he's referring to. The Gimp seems to insist on making the adjustment a curve rather than a straight line. I'll have to find and read the user's guide to see if those single channel manipulations can be made straight line segments. The built-in help did not address that, at least not that I could see. While the Gimp might not be able to do what I specifically want for weather satellite images, it sure looks useful and powerful for other kind of image and photo manipulation. I thank Matthew for his help.
Bill.
On 07/09/2013 10:35 AM, William Mattison wrote:
(Fedora-18; 64-bit; all desktops)
On my old Redhat-9 system, I had this great tool "xv" which I used quite often to "colorize" raw weather satellite images. It made doing that very easy, especially with the three GUIs that let me graphically vary the red, green, and blue intensities independently using the "RGB Modification" graphs in the "color editor" window. But when I launch the "Software" tool on my system and look for xv, the only thing I find is actually just a short script to launch the real xv. How do I get xv for my 64-bit Fedora-18 system? Or does Fedora-18 come with something else with the same functionality? If yes, what?
thanks, Bill.
1. With some off-line help from Ed Greshko, I got xv installed and working. I thank Ed for his help. I hope that the strong (super?) typhoon heading towards that area does not cause him and his family significant trouble.
2. I also tried the Gimp as per Matthew Miller's suggestion. I found the functionality that I believe he's referring to. The Gimp seems to insist on making the adjustment a curve rather than a straight line. I'll have to find and read the user's guide to see if those single channel manipulations can be made straight line segments. The built-in help did not address that, at least not that I could see. While the Gimp might not be able to do what I specifically want for weather satellite images, it sure looks useful and powerful for other kind of image and photo manipulation. I thank Matthew for his help.
Bill.
On 07/10/2013 08:59 AM, Bill Mattison wrote:
The Gimp seems to insist on making the adjustment a curve rather than a straight line.
A straight line *is* a curve. You may just have to adjust the curvature until it's zero. No, I'm not a Gimp expert, just pointing out a possible solution that I haven't tried.
On Wed, 2013-07-10 at 11:59 -0400, Bill Mattison wrote:
- I also tried the Gimp as per Matthew Miller's suggestion. I found
the functionality that I believe he's referring to. The Gimp seems to insist on making the adjustment a curve rather than a straight line.
Try: Rather than click in the middle of the graph, and move the line with a curve. Click on an end point and move it.