by CoachUK » Sun Jul 10, 2011 7:28 am
Hi,
bpp means bits per pixel...
Courtesy of Wiki...
..."
The number of distinct colors that can be represented by a pixel depends on the number of bits per pixel (bpp). A 1 bpp image uses 1-bit for each pixel, so each pixel can be either on or off. Each additional bit doubles the number of colors available, so a 2 bpp image can have 4 colors, and a 3 bpp image can have 8 colors:
1 bpp, 21 = 2 colors (monochrome)
2 bpp, 22 = 4 colors
3 bpp, 23 = 8 colors
...
8 bpp, 28 = 256 colors
16 bpp, 216 = 65,536 colors ("Highcolor" )
24 bpp, 224 ≈ 16.8 million colors ("Truecolor")
For color depths of 15 or more bits per pixel, the depth is normally the sum of the bits allocated to each of the red, green, and blue components. Highcolor, usually meaning 16 bpp, normally has five bits for red and blue, and six bits for green, as the human eye is more sensitive to errors in green than in the other two primary colors. For applications involving transparency, the 16 bits may be divided into five bits each of red, green, and blue, with one bit left for transparency. A 24-bit depth allows 8 bits per component. On some systems,
32-bit depth is available: this means that each 24-bit pixel has an extra 8 bits to describe its opacity (for purposes of combining with another image)
"...
The majority of 16x16 pixel sets nowadays will be x32bpp. To check, downlaod a set/icon and right click and select 'properties' then check on the 'detail' tab which will show the full spec.
A useful starting point for a set would be the Silk icon set from Mark James at the FamFamFam site here
http://www.famfamfam.com/lab/icons/silk/ although I
guarantee that whichever set you find it won't have
"just quite the icons you want" and you'll be into modifications to suit (assuming that you can do so via copyright, etc.).
Anyway, hope this helps,
Coach
Hi,
bpp means bits per pixel...
Courtesy of Wiki...
..."
The number of distinct colors that can be represented by a pixel depends on the number of bits per pixel (bpp). A 1 bpp image uses 1-bit for each pixel, so each pixel can be either on or off. Each additional bit doubles the number of colors available, so a 2 bpp image can have 4 colors, and a 3 bpp image can have 8 colors:
1 bpp, 21 = 2 colors (monochrome)
2 bpp, 22 = 4 colors
3 bpp, 23 = 8 colors
...
8 bpp, 28 = 256 colors
16 bpp, 216 = 65,536 colors ("Highcolor" )
24 bpp, 224 ≈ 16.8 million colors ("Truecolor")
For color depths of 15 or more bits per pixel, the depth is normally the sum of the bits allocated to each of the red, green, and blue components. Highcolor, usually meaning 16 bpp, normally has five bits for red and blue, and six bits for green, as the human eye is more sensitive to errors in green than in the other two primary colors. For applications involving transparency, the 16 bits may be divided into five bits each of red, green, and blue, with one bit left for transparency. A 24-bit depth allows 8 bits per component. On some systems, [b][color=#BF0040]32-bit depth is available: this means that each 24-bit pixel has an extra 8 bits to describe its opacity (for purposes of combining with another image)[/color][/b]
"...
The majority of 16x16 pixel sets nowadays will be x32bpp. To check, downlaod a set/icon and right click and select 'properties' then check on the 'detail' tab which will show the full spec.
A useful starting point for a set would be the Silk icon set from Mark James at the FamFamFam site here http://www.famfamfam.com/lab/icons/silk/ although I [u][b]guarantee[/b][/u] that whichever set you find it won't have [i]"just quite the icons you want"[/i] and you'll be into modifications to suit (assuming that you can do so via copyright, etc.).
Anyway, hope this helps,
Coach
