color keying

[byron_lui]

Hi,

i am trying to use the MontiVision Workbench to doing some real time chroma keying things, but i think i got some problem on using the "MV color filters" am i using the wrong filter? or are there any other method to do this,
so how MontiVision Workbench to do the color keying ( remove only blue color into transparence) Thx

[Marc Cymontkowski]

Hi,

Running 'MV Color Filter' in HSV mode and setting up 'band reject' and 'Filter out pixel' should do the trick. The H (hue) channel should be filtered for this purpose.


Best Regards,

Marc Cymontkowski

[byron_lui]

i got it, now i can see the blue color are reject from the video, but when i put two video together and use the "overlay mixer filter" i can't see two video combine together through the transparency part of the upper video, is it any method can do that? Thx