libpng warning: Image width is zero in IHDR
Hi, when i run my first OpenCV application in Java i receive that message from compiler:
Running DetectFaceDemo
Detected 0 faces
Writing faceDetection.png
*libpng warning: Image width is zero in IHDR
libpng warning: Image height is zero in IHDR
libpng error: Invalid IHDR data*
i try the example from: http://docs.opencv.org/2.4.4-beta/doc/tutorials/introduction/desktop_java/java_dev_intro.html