ow, okay, that should solve the problem. let me give it a try. anyway, the pix_rgba must also be applied to the referenced image isn't it? i mean the image that the image from the camera should be compared to...

thank you

Didit

On Tue, Oct 5, 2010 at 5:21 AM, ydegoyon@gmail.com <ydegoyon@gmail.com> wrote:

ola,

yeh it's quite clear...

the yuv images that comes from your cam
must be converted to rgba with pix_rgba
before being passed to opencv
that only works with rgb and grey internally..

[pix_video]
|
[pix_rgba]
|
[pix_opencv_...]

suerte,
sevy

Adityo Pratomo wrote:
hey everyone,

I was playing with the pix_opencv_hu_compare because I figure that it's the best way to track and detect a picture in a card. But then I got the error message:

[pix_opencv_threshold]: pix_opencv_threshold : yuv format not supported
error: [pix_opencv_hu_compare] : no method to combine (YUV) and (RGBA)

do you know why is it?

Thanks a lot :)


On Mon, Oct 4, 2010 at 5:31 PM, Adityo Pratomo <quietdidit@gmail.com <mailto:quietdidit@gmail.com>> wrote:

   ola yves,

   ookay, i'll try that, even though i did try to go back to
   pd-extended 0.41-4, and yeah your opencv works :) but i'll try
   your suggestion anyway :D

   Anyway, i Was wondering, what is the best way to implement blob
   detection on pd? or if I want to detect and track an edge of an
   object from a camera, what is the best way to do it?

   Thank you

   Regards,

   didit


   On Mon, Oct 4, 2010 at 2:23 PM, ydegoyon@gmail.com
   <mailto:ydegoyon@gmail.com> <ydegoyon@gmail.com

   <mailto:ydegoyon@gmail.com>> wrote:

       ola,

       hum, get sure you've got something here:
       /Library/Frameworks/OpenCV.framework/Headers/

       and that you installed the target pd-extended too in :
       /Applications/Pd-extended.app/Contents/Resources/include/

       it should work then

       saludos,
       sevy


       Adityo Pratomo wrote:

           hi there,

           i was compiling puredata_opencv this morning for a school
           project. however, i got this error while trying to compile it:

           configure: error: you need to install opencv library (libcv)

           i already followed all the sequence of compiling it. I'm
           on a Mac, so I already put the opencv framework on
           /Library/Frameworks folder, and I already downloaded the
           pd 0.42.5 and Gem 0.92.3, because i'm using the latest
           pd-extended.

           any suggestion why is this happening? Or should I just use
           the previous pd-extended so that I can use the available
           packages of puredata_opencv?

           Thank you very much for any help :)

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