On Wed, 11 Nov 2009 02:32:37 -0800 (PST)
mini prashanth <[email protected]> wrote:
| Hi,
| Iam basically trying to fetch the color value of the pixel at position 0,0
and store it in the hex format "#cccccc" in a variable .
|
| FOR /F %%i IN ('identify -format "%%[fx:p{0,0}]" "img.jpg"') DO SET x=%%i
(here iam getting some decimal value like x=0.298110)
|
| I tried to change it into Hex value by using this..
|
| For /F %%s IN ('EVAL "rgb(%x%)"') Do SET hexColor=%%s
|
| This is not working ..Please Help
|
fx only works with single values. That number if just the red color value
as a normalized 0 to 1 value.
color will return a color value which IM can use. Often it will be
a rgb(...) color, but sometimes it will return the corresponding color
name 'black' 'white' 'red' puce' etc. It is not in hexadecimal format.
convert rose: -format "%[pixel:u]" info:-
rgb(48,47,45)
As Fred pointed out, you can extract the value from a TXT: output
convert rose:[1x1+0+0] txt:
# ImageMagick pixel enumeration: 1,1,255,rgb
0,0: ( 48, 47, 45) #302F2D rgb(48,47,45)
But as you are windows 'sed' is not really available, and windows
command line string handling abilities is pretty non-existant.
You can use -fx to extract each of the three color values (red, green,
blue), but you will get them as a floating point numbers, or intergers.
convert rose: -crop 1x1+0+0 \
-format "%[fx:int(255*r)],%[fx:int(255*g)],%[fx:int(255*b)]" \
info:-
48,47,45
If %[fx:..] had a awy to format its output we could ask it to output
the values as 2 digit hexadecimal values ( printf format "%02X" )
but that feature is not available at this time, and you again do not
have access to the UNIX 'printf' command to convert them.
I am sorry their is no simple way to extract the color, as a hexadecimal
directly from the command line ImageMagick. The values are there just
not in the right format.
Anthony Thyssen ( System Programmer ) <[email protected]>
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Anthony's Home is his Castle http://www.cit.gu.edu.au/~anthony/
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