/usr/share/man/ is in libggigcp1-dev 1.0.2+dfsg1-2.1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/man/man7/
/usr/share/man/man7/libggigcp.7.gz
/usr/share/man/man3/
/usr/share/man/man3/gcpMapRGBAColor.3.gz
/usr/share/man/man3/gcpGetLuminance.3.gz
/usr/share/man/man3/gcpUnmapRGBAPixel.3.gz
/usr/share/man/man3/gcpSetRGBAPalette.3.gz
/usr/share/man/man3/gcpGetRGBAGamma.3.gz
/usr/share/man/man3/gcpSetIntensity.3.gz
/usr/share/man/man3/gcpBlendColor.3.gz
/usr/share/man/man3/gcpInit.3.gz
/usr/share/man/man3/gcpSetColorfulPalette.3.gz
/usr/share/man/man3/gcp_pixel.3.gz
/usr/share/man/man3/gcpSetYUVGammaMap.3.gz
/usr/share/man/man3/gcpSetHSVPalette.3.gz
/usr/share/man/man3/gcpGetYCCGammaMap.3.gz
/usr/share/man/man3/gcpUnmapYCCPixel.3.gz
/usr/share/man/man3/gcpPackCMYKColors.3.gz
/usr/share/man/man3/gcp_YUVcolor.3.gz
/usr/share/man/man3/gcp_CMYKcolor.3.gz
/usr/share/man/man3/gcpUnmapYUVPixel.3.gz
/usr/share/man/man3/gcpMapYUVColor.3.gz
/usr/share/man/man3/gcpSetCMYKGamma.3.gz
/usr/share/man/man3/gcpSetCMYKPalette.3.gz
/usr/share/man/man3/gcpGetHSVGamma.3.gz
/usr/share/man/man3/gcpSetCMYKGammaMap.3.gz
/usr/share/man/man3/gcpGetYUVPalette.3.gz
/usr/share/man/man3/gcpUnmapHSVPixel.3.gz
/usr/share/man/man3/gcpGetRGBAPalette.3.gz
/usr/share/man/man3/gcpGetRGBAGammaMap.3.gz
/usr/share/man/man3/gcpGetCMYKGamma.3.gz
/usr/share/man/man3/gcpUnpackYCCPixels.3.gz
/usr/share/man/man3/gcpSetYCCGamma.3.gz
/usr/share/man/man3/gcpGetIntensity.3.gz
/usr/share/man/man3/gcpPackRGBAColors.3.gz
/usr/share/man/man3/gcpUnmapCMYKPixel.3.gz
/usr/share/man/man3/gcpGetYCCGamma.3.gz
/usr/share/man/man3/gcp_YCCcolor.3.gz
/usr/share/man/man3/gcpPackYCCColors.3.gz
/usr/share/man/man3/gcpSetYUVGamma.3.gz
/usr/share/man/man3/gcpDetach.3.gz
/usr/share/man/man3/gcpUnpackYUVPixels.3.gz
/usr/share/man/man3/gcpMapYCCColor.3.gz
/usr/share/man/man3/gcpSetRGBAGammaMap.3.gz
/usr/share/man/man3/gcpGetYCCPalette.3.gz
/usr/share/man/man3/gcpAttach.3.gz
/usr/share/man/man3/gcpGetYUVGammaMap.3.gz
/usr/share/man/man3/gcpGetHSVPalette.3.gz
/usr/share/man/man3/gcpUnpackRGBAPixels.3.gz
/usr/share/man/man3/gcpPackHSVColors.3.gz
/usr/share/man/man3/gcpSetYCCGammaMap.3.gz
/usr/share/man/man3/gcpSetHSVGamma.3.gz
/usr/share/man/man3/gcpSetYCCPalette.3.gz
/usr/share/man/man3/gcpMapHSVColor.3.gz
/usr/share/man/man3/gcpGetCMYKPalette.3.gz
/usr/share/man/man3/gcpGetYUVGamma.3.gz
/usr/share/man/man3/gcpSetYUVPalette.3.gz
/usr/share/man/man3/gcpSetHSVGammaMap.3.gz
/usr/share/man/man3/gcpGetHSVGammaMap.3.gz
/usr/share/man/man3/gcp_RGBAcolor.3.gz
/usr/share/man/man3/gcpMapCMYKColor.3.gz
/usr/share/man/man3/gcpUnpackHSVPixels.3.gz
/usr/share/man/man3/gcpSetRGBAGamma.3.gz
/usr/share/man/man3/gcpGetCMYKGammaMap.3.gz
/usr/share/man/man3/gcpUnpackCMYKPixels.3.gz
/usr/share/man/man3/gcpPackYUVColors.3.gz
/usr/share/man/man3/gcpExit.3.gz
/usr/share/man/man3/gcp_HSVcolor.3.gz