Deprecated OpenCV consts leading to compilation error

[AdamStelmaszczyk]

When compiling Caffe I got the same compilation error as here:
https://groups.google.com/forum/#!topic/caffe-users/mZDi02lgcj0

This is because constants such as CV_BGRA2GRAY are deprecated in OpenCV 2 and 3.
The replacements are constants such as cv::COLOR_BGRA2GRAY.

[flx42]

LGTM

[flx42]

... aside from the commit message where there is a typo in the title and you should remove the first paragraph.

[AdamStelmaszczyk]

@flx42 I edited the commit message and title of this pull request.

[flx42]

You should have kept the message about OpenCV versions

But actually, I installed OpenCV 3.0.0 and I couldn't repro the issue, which version of OpenCV are you using exactly?

[AdamStelmaszczyk]

I used OpenCV 3.0.0.

Wesley from earlier mentioned Google Group thread also used 3.0.0.

These consts come from this OpenCV file: https://github.com/Itseez/opencv/blob/master/modules/imgproc/include/opencv2/imgproc.hpp

Why you can't reproduce this issue: maybe you haven't correctly uninstalled previous version of OpenCV or haven't done make clean.

Not sure if this is relevant, but me and Wesley are building with CPU_ONLY := 1 in Makefile.config:8.

[flx42]

Sure, it's deprecated, but I don't understand why it's not compiling for you, the constants still exist:
https://github.com/Itseez/opencv/blob/master/modules/imgproc/include/opencv2/imgproc/types_c.h#L103-L128