Difference between revisions of "Histograms 333"
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= Histograms in 333 camera = | = Histograms in 333 camera = | ||
It is now (starting with 6.4.22 software) possible to get images with histograms from the 333 cameras. | It is now (starting with 6.4.22 software) possible to get images with histograms from the 333 cameras. | ||
| + | == histogram.cgi == | ||
<nowiki>http://<camera_ip>/histogram.cgi</nowiki> | <nowiki>http://<camera_ip>/histogram.cgi</nowiki> | ||
| − | returns GIF image with 4 histograms - for integral intensity (white) and | + | returns GIF image with 4 histograms - for integral intensity (white) and for individual colors (RGB) |
| + | == pnghist.cgi == | ||
<nowiki>http://<camera_ip>/pnghist.cgi</nowiki> | <nowiki>http://<camera_ip>/pnghist.cgi</nowiki> | ||
returns PNG images and can be configured with additional parameters, such as | returns PNG images and can be configured with additional parameters, such as | ||
<nowiki>http://<camera_ip>/pnghist.cgi?sqrt=0&scale=10&average=10</nowiki> | <nowiki>http://<camera_ip>/pnghist.cgi?sqrt=0&scale=10&average=10</nowiki> | ||
| − | == pnghist.cgi parameters == | + | === pnghist.cgi parameters === |
| − | '''Bold'' are the default values | + | '''Bold''' are the default values |
height - image height, maximal is '''256''' pixels (width is always 256) | height - image height, maximal is '''256''' pixels (width is always 256) | ||
draw - draw mode (0..'''2'''): 0 - dots, 1 - vertical bars, 2 - connected dots | draw - draw mode (0..'''2'''): 0 - dots, 1 - vertical bars, 2 - connected dots | ||
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colors - (0..'''57'''..63). Bit-mask that controls display of individual and composite components: | colors - (0..'''57'''..63). Bit-mask that controls display of individual and composite components: | ||
1 - red, 2 - Green1 (in red rows), 4 - green 2 (in blue rows), 8 - blue, 16 - white, 32 - both greens combined. So 1+8+32=40 will display R,G and B | 1 - red, 2 - Green1 (in red rows), 4 - green 2 (in blue rows), 8 - blue, 16 - white, 32 - both greens combined. So 1+8+32=40 will display R,G and B | ||
| − | + | average - ('''0'''...) - running average, averages specified number of pixels to make histograms smooth. | |
| − | + | scale - (..'''3.0'''...) - specifies what fraction of the total height would the histogram occupy iof all the values were the same. The higher the value, the lower the histogram will be displayed | |
Latest revision as of 10:42, 13 January 2006
Histograms in 333 camera
It is now (starting with 6.4.22 software) possible to get images with histograms from the 333 cameras.
histogram.cgi
http://<camera_ip>/histogram.cgi
returns GIF image with 4 histograms - for integral intensity (white) and for individual colors (RGB)
pnghist.cgi
http://<camera_ip>/pnghist.cgi
returns PNG images and can be configured with additional parameters, such as
http://<camera_ip>/pnghist.cgi?sqrt=0&scale=10&average=10
pnghist.cgi parameters
Bold are the default values
height - image height, maximal is 256 pixels (width is always 256) draw - draw mode (0..2): 0 - dots, 1 - vertical bars, 2 - connected dots fillz - (0/1), fill zeros - fill gaps of zeros (happens in high contras areas where each sensor count (1 of 1024) corresponds to several output counts. linterpz - (0/1), linear interpolation for the filled gaps of zeros. Automatically turns on fillz (above) sqrt - (0/1), calcualtes square root fro each histogram value. Relatively increases small values. colors - (0..57..63). Bit-mask that controls display of individual and composite components: 1 - red, 2 - Green1 (in red rows), 4 - green 2 (in blue rows), 8 - blue, 16 - white, 32 - both greens combined. So 1+8+32=40 will display R,G and B average - (0...) - running average, averages specified number of pixels to make histograms smooth. scale - (..3.0...) - specifies what fraction of the total height would the histogram occupy iof all the values were the same. The higher the value, the lower the histogram will be displayed
