the background to my question is: i am currently developing a system for the detection and recognition of traffic signs. for this i use color segmentation in hsv color space. the system works well via webcam und desktop pc.
i have ported this algorithm to android via java native interface / android ndk. however, i realized that android makes use of some image enhancements e.g. white balance. these changes on the picture, especially caused by the automatic white balance, have strong influence on the color segments. even various modes such as WHITE_BALANCE_AUTO WHITE_BALANCE_CLOUDY_DAYLIGHT WHITE_BALANCE_DAYLIGHT WHITE_BALANCE_FLUORESCENT WHITE_BALANCE_INCANDESCENT do not work realiably. for displaying my camera pictures i implement a surfaceview. here are my questions: 1) is there a possibility to acces the image / image data without consideration for the automatic image enhancements which are provided by the android camera api? 2) if not, is there a possibility to individually disable the above-mentioned image enhancements? methods such as setAutoWhiteBalanceLock() only cause me a black screen. Regarding the camera lifecycle, where exactly does this lock have to be activated? this, however, would only be an emergency solution as for the first frames the white balance is applied and will then only be blocked. thanks in advance! -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
