Joseph J. Strout dixit, le 28/01/05 à 11:10 :
Oh, well then that's easy. Simply make a
picture, fill the background with whatever you
want the background to be (i.e., what will be
mixed with the picture), draw your masked
picture into this, and then pass it to
FolderItem.SaveAsPicture or SaveAsJPEG or
whatever.
This is correct if I want to add a subject onto a
lanscape, for example. This is the classic use
(and supposed original purpose) of masking, but i
am in some experimentation here.
What i want to do is modify the image with color
tint or some other effect i can obtain onscreen
(but cannot understand clearly since the
documentation is quite mute on these
calculations...) You can easily see by yourself :
make a canvas, draw an image in its backdrop,
draw something in its backdrop.mask (try a plain
light color, definitely not grey) and admire the
effect. Nobody did this before ? I can't believe
this!
The effect is quite different from overlaying
another canvas with the same color and some grey
mask.
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