I am traying to prepare own dynamicly generated FeedCount for my own subscription service. I think this will be a good idea to support convention for setting colors via URL which is well known from FeedBurner,
http://feeds.feedburner.com/~fc/Ekundelekpl?bg=99CCFF&fg=000000&anim=0
this URLs produce such image.
fg is means a text color, bg means here a dark blue color. However light blue (ccffff) is here generated according to some rule.
Is this a some kind popular convert color convention, which is well known in webdeveloper/designers world?
I checked few other pairs of color, but I count figure out what the rule is. I don't want to hardcode all colors supported by FeedBurner.
[EDIT]
There is 216 available colors. Here is twelve pairs which I have extracted:
000000,7e7e7e
000033,8a8a8a
000066,909090
000099,9999CC
0000CC,9999FF
0000FF,9999FF
006600,909090
006633,99CC99
006666,A2A2A2
006699,99CCCC
0066CC,99CCFF
0066FF,99CCFF
I did it in another way.
I decided to use feedburner as template. I download proper image and override parts which interest me.
https://github.com/noisy/eGazeciarzFeedCount
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I've been trying to figure this out for 2 days now, so I hope somebody can help.
I need to load in svg files that have multiple values of gray within them and tint them with colors. So for example, say the svg file is an image of a rock and has 4 values of gray. I need to be able to display the rock as red and keep the differences between values in the different child shapes. In other words, I would like it to work just like PImage.tint().
I see there are tint() and setTint() methods to PShape but I can't seem to get them to work. I also though about recursing through the child shapes and reading each color individually and recoloring appropriately, but I couldn't even figure out how to read the color out in a way I understand.
Help, anyone?
If you have it as an <img> you can use the CSS filter property with hue-rotate https://developer.mozilla.org/en-US/docs/Web/CSS/filter-function/hue-rotate
Or you add the svg directly to the html and add classes to your elements. Then you could change the colors in your script.
If this is a flat colour then you could use the alpha value in RGB colour value. See 'color transparency' in the following link: https://processing.org/tutorials/color/
The fill value is fill(red, green, blue, transparency)
I hope this helps. If you want to share code and have a reason for using PImage I'd be happy to have a look.
I've made a simple shape editor. I can change colors (used to fill shapes) by click on buttons in a menu bar. The disadvangate of this solving is the fact that the numbers of colors are so restricted. I can't find a better solution for my program. Can somebody help me and give me an idea how can I improve it? I thought about color palette, but I have no idea how can I do this.
The image:
("Aktywny kolor" means active colors, and there is the list of colors below, which I can use)
You would need to use a color picker where the colors are distributed on many pixels and not on a very small set of color names. Since you are using applet, you might want to download an already made color picker compatible with your environment, or you might want to write your own, depending on whether the things you find meet your expectations.
The idea is like the inverse of Ishihara test (http://www.colour-blindness.com/colour-blindness-tests/ishihara-colour-test-plates/).
I want to create with GIMP an image that showing something and then if I add a color layer, for exemple green glasses, then I see something new appearing.
I've searching far in Google and so but didn't found anything. Do you know how would I make this?
The Ishihara tests use the principle of combining things color blind persons cannot differentiate.
Coloured glass filters will only remove other colours from what you see. They don't add something. Therefor it is not possible to create a digital image that contains no information unless seen through a colour filter.
The only thing you can do is overlap your "hidden" information with high contrast colour noise.
Like here:
Using the glasses / filter only improves the visibility. The information is not added. It was always there.
I try to create a 3D video using ImageJ and one of its plugins 3DViewer.
My image came from a 8-bit ANALYZE file. After opening it in ImageJ, I used the LUT to assign a colour to each of 4 entries. Is there a way to change the opaqueness of each colour? For example, red needs to be transparent, where as blue and green should be solid.
Many thanks for your time.
This may not be the best solution, but it worked. I saved the original NIfTI file as two separate files (one contains the entires that will be opaque and another with the entires that will be transparent). I opened both of them on ImageJ, launched 3DViewer with the first image, then added the one that needs to be transparent. There's an option in 3DViewer for making the image transparent.
I have come across this great function/command. Colour to RGB, you can do this:
col2rgb("peachpuff")
//returns hex
It will return one hex value. I want to extend this using Perl, Python or PHP but I want to be able to pass in, for example, "yellow" and the function returns all types of yellows - their hex/rgb/?/etc value.
I already have a quick solution implemented, which involves mapping colour names to hex values but now I want to get more precise and use some formulas etc to determine what's what.
However, as usual, I don't have a clue on how to do this! So I appreciate any implementation advice on how to do this.
Thanks all
The canonical CSS color names originated in X11 and the intersection of the sets - along with their RGB values can be - found at Wikipedia.
A more easily parsed list can be found in various rgb.txt files scattered over the web, but these are likely the X11 set not the CSS set.
added: Given an RGB value you can compute nearby colors by HSL conversion. Color palettes - sets of colors that go well together - are an art not a science, Google 'em.
Why don't you use the ccs Color names.
W3c webstandard --> CSS3/SVG Farben