OpenCV and Processing 3

Posted by bryan

This example will demonstrate the use of CvType, Size and Scalar.

CvType defines all the matrix types in OpenCV. It describes the number of channels, and depth information for each element (pixel) in the matrix. This example will use CV_8UC1 – 8 bits unsigned char, 1 channel. To communicate with Processing, we usually take CV_8UC4 for ARGB as the RGB format in PImage also uses 4 bytes for storage.
 
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OpenCV 3.0.0 rc1 Java build

Posted by bryan

I built the OpenCV 3.0.0 rc1 64-bit Java bindings and packaged into one single file. You can use it for the Processing examples. Copy them to the code folder of the sketch for simple testings.

opencv_java300_rc1 (64-bit)

It includes the following files,

  • opencv-300.jar
  • libopencv_java300.dylib (patched with the @loader_path)
  • libopencv_java300.so (built in Ubuntu 64 bit)
  • opencv_java300.dll (default one from the pre-built binary)

OpenCV and Processing 1

Posted by bryan

This is the beginning of a series of posts related to using OpenCV and Processing in the Linux environment. I built the OpenCV 3.0.0 rc1 in Ubuntu. By putting the 2 files, libopencv_java300.so and opencv-300.jar in the code folder of a sketch, I can use the alpha version 3.0a7 of Processing and the official Java binding of OpenCV together to prepare for the examples of a newly proposed book in image processing and computer vision. I do not use the OpenCV for Processing library by Greg Borenstein, in order to reveal the underlying working mechanism of OpenCV for learning purpose.
 
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