The vulnerable version of libpng in OpenCV 2.4.x was updated in OpenCV 2.4.13.1. It can be downloaded from here. As @Simon says, OpenCV 3.x is not affected. More info: #6694 OpenCV 2.x uses vulnerable version of libpng
PNG supports transparency in two (or three) quite different ways: Truecolor or grayscale images with a separated alpha channel (RGBA or GA) Transparency extra info in the (optional) tRNS chunk . Which has two different flavors: 2a. For indexed images: the tRNS chunk specifies a transparency value (“alpha”) for one, several or all the palette … Read more
I suggest you run: $ brew update && brew upgrade Until couple of minutes ago I had this problem, too. Because I have an up to date PHP version, I solved it with: $ brew reinstall php55 Hope that helps.
Libpng-1.6 is more stringent about checking ICC profiles than previous versions. You can ignore the warning. To get rid of it, remove the iCCP chunk from the PNG image. Some applications treat warnings as errors; if you are using such an application you do have to remove the chunk. You can do that with any … Read more