/usr/share/psychtoolbox-3/PsychGLImageProcessing/ is in psychtoolbox-3-common 3.0.11.20140816.dfsg1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/psychtoolbox-3/PsychGLImageProcessing/Add2DConvolutionToGLOperator.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/Add2DSeparableConvolutionToGLOperator.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/AddImageUndistortionToGLOperator.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/AddImageWarpToGLOperator.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/AddToGLOperator.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/BitsPlusPlus.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/Contents.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/CountSlotsInGLOperator.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/CreateDisplayWarp.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/CreateGLOperator.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/CreateProceduralGabor.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/CreateProceduralNoise.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/CreateProceduralSineGrating.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/CreatePseudoGrayLUT.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/CreateResolutionPyramid.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/CreateSinglePassImageProcessingShader.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/DisplayUndistortionBVL.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/DisplayUndistortionBezier.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/DisplayUndistortionCSV.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/DisplayUndistortionHalfCylinder.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/DisplayUndistortionSphere.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/MakeTextureDrawShader.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/PsychColorCorrection.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/PsychHelperCreateARGB2101010RemapCLUT.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/PsychHelperCreateGenericLuminanceToRGBA8LUT.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/PsychHelperCreateRemapCLUT.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/PsychImaging.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/PsychVideoSwitcher.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/SetAnaglyphStereoParameters.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/SetCompressedStereoSideBySideParameters.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/SetStereoBlueLineSyncParameters.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/SetStereoSideBySideParameters.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/VignetCalibration.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/kPsychAssumeTextureNormalized.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/kPsychNeed16BPCFixed.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/kPsychNeed16BPCFloat.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/kPsychNeed32BPCFloat.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/kPsychNeedDualPass.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/kPsychNeedDualWindowOutput.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/kPsychNeedFastBackingStore.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/kPsychNeedFastOffscreenWindows.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/kPsychNeedHalfHeightWindow.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/kPsychNeedHalfWidthWindow.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/kPsychNeedImageProcessing.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/kPsychNeedMultiPass.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/kPsychNeedOutputConversion.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/kPsychNeedTwiceWidthWindow.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/kPsychUse32BPCFloatAsap.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/moglExtractTexture.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/private/
/usr/share/psychtoolbox-3/PsychGLImageProcessing/private/BFRenderSceneUnwrap.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/private/DrawRectFrame.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/private/NewCalibFile.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/private/bvlAcceptCalibGuiInput.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/private/bvlBarrelPincushionDots.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/private/bvlDrawCrosshair.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/private/bvlDrawText.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/private/bvlExpandContractDots.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/private/bvlSelectFitPts.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/private/bvlShearDots.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/private/bvlTranslateDots.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/private/bvlTrapezoidDots.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/private/bvlWaitForInput.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/private/createnewcalibrationgrid.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/private/fineadjust.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/private/fit.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/private/manual_calibrate.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/private/poly2fit.m
/usr/share/psychtoolbox-3/PsychGLImageProcessing/private/selectcalibrationpoints.m