MPSImageReduceColumnSum A filter that returns the sum of all values for a column in an image. Declarationclass MPSImageReduceColumnSum TopicsInitializersinit(device:) RelationshipsInherits FromMPSImageReduceUnaryConforms ToCVarArgCustomDebugStringConvertibleCustomStringConvertibleEquatableHashableNSCodingNSCopyingNSObjectProtocolNSSecureCoding See AlsoImage Reduction FiltersMPSImageReduceRowMaxMPSImageReduceRowMinMPSImageReduceRowSumMPSImageReduceRowMeanMPSImageReduceColumnMaxMPSImageReduceColumnMinMPSImageReduceColumnMeanMPSImageReduceUnary