Open source computer vision library Formula was removed
Last versions were
opencv requires the following formulae to be installed:
cmake 3.10.3 Cross-platform make
pkg-config 0.29.2 Manage compile and link flags for libraries
jpeg 9c Image manipulation library
libpng 1.6.34 Library for manipulating PNG images
libtiff 4.0.9_2 TIFF library and utilities
eigen 3.3.4 C++ template library for linear algebra
openexr 2.2.0 High dynamic-range image file format
numpy 1.14.2 Package for scientific computing with Python
jasper 2.0.14 Library for manipulating JPEG-2000 images
gstreamer 1.14.0_1 Development framework for multimedia applications
libdc1394 2.2.2_1 Provides API for IEEE 1394 cameras
tbb 2018_U2 Rich and complete approach to parallelism in C++
ffmpeg 3.4.2 Play, record, convert, and stream audio and video

Reverse dependencies

The following formulae require opencv to be installed:
shogun 6.0.0 Large scale machine learning toolbox
visp 3.0.1_4 Visual Servoing Platform library

Recent formula history

FX Coudert opencv, opencv3: migrate to homebrew/core (#6126)
FX Coudert opencv: revision for jpeg
Timothee Cour opencv: fix for Linux
Timothee Cour opencv: fix build step for Python (#4750)
ilovezfs opencv

Formula code at GitHub