How can I convert the following pixel to a color? (16bpp, RGB565, LE)
0x00 0xf8
I tried converting the numbers to binary numbers, but I'm unsure how to convert them to a color.
Thank you!
What language? If you aren't using a language, just open paint and use the select colour tool and read what the hex is.
Related
I need to convert a bunch of color codes to Hex. The codes are in this format:
0.986246,0.007121,0.027434,1.000000
Has anyone seen this format before and know a way to convert to Hex?
Manual
CMYK encode:
https://convertingcolors.com/cmy-color-0.9862_0.0071_0.0274.html?search=CMY(0.986246,0.007121,0.027434)
this is a decoder, the last one 1.0 is the alpha or transparency
Script
If you are handy on Javascript there is a script to convert: What is the formula to convert a color in CMYK to hex?
I am creating a spreadsheet using OOXML. In the example spreadsheet I am referencing to compare my output versus Excel 2010's Output I see the following entry in styles.xml:
<font><sz val="11"/><color rgb="FFFF0000"/><name val="Calibri"/><family val="2"/><scheme val="minor"/></font>
My understanding of RGB colors is that they are usually represented as 3 numbers i.e. 255,0,0 or as Hex FF0000
But in the example spreadsheet I have it shows as rgb=FFFF0000 which I would read as 255,255,0,0
How is FFFF0000 derived from the color Red?
It appears that a FF is inserted in front of the RGB hex value in all my colors, but I would prefer to know if this is part of the OOXML specifications before I assume something and later have issues with an incorrect assumption.
Thanks
After some more research I have been able to answer my own question.
(Google ARGB for more info)
The 1st hex character (additional one preceding the RGB hex value) is used to define the level of transparency.
This Hex value ranges from X'00' which means fully transparent to X'FF" means fully opaque
What I want to do:
I would like to change an image to indexed, provide the color map, and set the max number of colors in the image to 70 of the provided 400. I would like this final image to be exported in some kind of text based format.
What I have so far:
I have the color palette as a text list of ~400 HEX values and their RGB equivalents in an excel spreadsheet. I can create a csv or tab-separated file of whatever of the two formats are needed (hex or RGB).Using imagemagik, the -remap argument will do the palette conversion, and the -color argument to limit the number of colors to 70. If the indexed image is saved as bmp, I can easily import a BMP into c++/python/matlab/octave and do some operations on the array and write that to text file.
Where I'm stuck:
I'm struggling to efficiently get my text-based list of ascii values into a nice colormap image that I can feed to the -remap argument. I know I could manually create one by painstakingly creating an image and making one pixel each color in the colormap, but there must be a better way!
Other Stuff:
If you have any other advice about the process I've mentioned above or any suggestions as to how I can do this better/faster/more efficiently, I'm all ears!
In C#, I have a control that wants it's backcolor set by way of an Uint value.
With out running 10's of thousands of permiatations, how do I know what value to use for Light Tan, Dark Green, etc?
I would guess it's a RGB color Take a hex #RRGGBB and convert to int. So red would be #FF0000, blue is #00FF00, green #0000FF. Just a guess.
So looking at the Web Color Chart, a light tan is #CFC996. Convert that to decimal is 13617558
Good luck
I'm using Expression Blend 3 and am writing some of the XAML by hand, specifically the color values of controls.
I have a list of RGB colors already converted to hexadecimal. I just need to insert the hex value into my XAML.
Initially, I pasted the hex value from an email into the appropriate properties. Before I could finish, Blend started having a fit, underlining the color property with a squiggle and a tooltip telling me "Token is not valid." After some research, I found placing a pound sign ("#") in front of the hex value resolved this issue.
In the process of researching this problem, I started changing colors via the color picker in Blend. I quickly found the values Blend was inserting not only started with the pound sign, but also "FF". The values I was pasting were valid colors in a valid hex format. But when entering the RGB values into Blend and letting Blend insert the hex value, I noticed all my colors were prefixed with "#FF". Removing the #, as I already pointed out, generated errors, but removing the "FF" seemed to have no effect at all.
In the world of hexadecimal colors, is the color #5A7F39 really the same as #FF5A7F39? Why the FF? They are two different hex values, right? But they appear identical onscreen. Why the difference?
That may be the alpha component of the color, which represents the opacity (00 -> transparent, FF -> opaque).
MSDN seems to agree with this: Color
16-bit hexadecimal, alpha -- #AARRGGBB
I believe the leading FF is the alpha. 255 (or FF) being 100% opaque, and 00 would be transparent.
The 'extra' FF is an alpha value (degree of transparency). If you only have three hexadecimal pairs, the alpha value is assumed to be ff (no transparency). However, if you compare #335A7F39 and #FF5A7F39, you should see a difference.