I remember finding this online once but I can't seem to find it anywhere now. I'm creating an enumeration for each of the colors (ints) in the vgascreen.clear(int) method. Instead of testing out each number, I was looking for a description online for each number coresponding to it's correct integer value.
for example
VGAScreen.Clear(0); // Black Screen
VGAScreen.Clear(1); // Blue Screen
VGAScreen.Clear(2); // Green
...
...
As you can guess, testing out each number is getting to be tiresome and boring. Anybody know a link for what I'm looking for?
First relevant image hit on google for standard VGA palette search.
Those are the colors set by VGA BIOS entering any 256 colors VGA/VESA video mode. It is designed for better dithering results ...
So it is high likelly you got the same colors.
Related
I've been building a website under Ubuntu 17.10 and use Firefox and Chromium for testing. The two browsers show quite different colors (not only for images but all colors) and I always thought that it is Chromium which for some reason wrongly over-saturates them, so up until now I always chose colors that looked right in Firefox.
But I'm starting to get more and more complaints about the website's background being too purple - which it shouldn't be in my opinion as only the blue component of it's color (#eeeeff) is "elevated", but it has reached a point that more people are seeing it as purple than blue, what makes me confused.
This is the aforementioned color displayed in Firefox (left) and Chromium (right).
And this is how I see a website:
The difference is quite large (notice how even the favicon is different) and I'm asking you to tell me which one is the browser I should trust when choosing the colours of my websites and whether I could do something to avoid it being displayed so differently in different browsers.
(There are some users that see the overly saturated colors in Firefox too. So now which is the right one, really?)
Another option is to open chrome://flags/ and select the option sRGB on the Force color profile item.
By using this setting instead of disabling the Use hardware acceleration when available, you don't lose some nice features like the 3D view on Google Maps.
Solution found here: https://www.reddit.com/r/Fedora/comments/74h5yh/blue_shows_as_purple_in_chrome/
Using GPick as a Color Picker and calling a Website with Color Hexcode like
http://www.color-hex.com/color-palette/54430
I see, that Firefox renders the RGB Colors exactly, meaning GPick identifies the same Hex Code from CSS.
Whereas Chromium renders some kind of differnt color.
You can call
chrome://flags/#force-color-profile
and set the Color Profile in Chromium to sRGB, so the rendered Color from Chromium is identified the same as the HexCode with GPick.
If you disable 'Use hardware acceleration when available' in Chromium Settings and relaunch, Chromium displays colors correctly. When turned on, Chromium colors are off. I consider this as a workaround until Chromium color management issue with hardware acceleration is resolved.
With the other two colours being equal, your colour is right in the middle of "blue territory".
If you convert it to HSL and look on the hue line, you can see it is right in the middle of the "blue" frequency range.
Consequently, any hint of green or red is incorrect.
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.
Just interested in knowing if there are any good (and short! :-) ) articles which talk about the color combinations that would look good on a website.
i.e For tables (odd and even row), which one will be good in all situations
For alerts? For menus? etc
Thanks!
When it comes to colors, I don't think there are any set colors like you ask. There are no articles that say "ALL MENUS MUST BE BLUE!".
For alerts, either a light or golden yellow is used (so that you don't burn your eyes out), or a dark maroon or peachy pink for more prominent alerts. Menus can be any color, but they should match your color scheme.
I think what you are implicitly asking for are color schemes. Take a look at these resources:
Prefab color pallets for inspiration
Color scheme helper chooser
Aviary (Toucan) color chooser (flash)
Visibone color lab
Related articles
How color schemes work
How to choose a color scheme
How to select color combinations
In addition, if you are serious about your website, I strongly STRONGLY suggest reading this book:
Steve Krugs Dont Make Me Think
The book is in an easy to read (and skim) format, and is about colors, interfaces, buttons, and designing the easy-to-use website with lots of pictures and examples. For me, it was a quick read ( < 1 hr), and it changed my life.
simple advise : do not use many colors. select three or max four different color. and work with their shades.
for color scheme selections nothing beats...
http://kuler.adobe.com/
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
I'm stuck right now with defining the dimension of each line. The list I want to scrape has various colors in it, and what disturbs me the most a selection:
As you can see the picture I try to analyze got a white background with green text. The selection background is grey with black text. And every second line has a slightly greyer background, but I managed to manipulate the contrast with a ColorMatrix.
Just for reference, I do have some other ColorMatrizes like Greyscale, Negative, SetContrast, SetBrightness and so on.
My method, which is searching the lines does work good with the most part of the picture, but the selection brakes it.
So now I'm stuck and don't know what to do. I googled for an hour, but didn't find a solution.
I thought, that maybe I can transform the background grey from the selection to white without affecting the text and greyscale the rest of the picture. But I can't find a ColorMatrix which does the job.
Do you know one or got a better solution?
Why use a color-matrix at all?
It works (at least for your specific example) much easier with ImageMagick's -threshold operation:
convert \
http://img18.imageshack.us/img18/210/lobbymd9.jpg \
-threshold 50% \
result.jpg
Visual Result:
=>
Thresholding basically leaves over only 2 values (zero or maximum) for each color. Every value below the threshold gets set to 0, values above the threshold get set to 255 (or 65535 if working at 16-bit depth). The end effect is a pure black+white picture.