.TH BLIND-CROSS-PRODUCT 1 blind .SH NAME blind-cross-product - Calculate the cross product of colours in a video .SH SYNOPSIS .B blind-cross-product .I right-hand-stream .SH DESCRIPTION .B blind-cross-product reads left-hand operands from stdin, and right-hand operands from .IR right-hand-stream , and calculates the cross product of the colours. The values of the alpha channels multiple with each others with regular scalar-scalar multiplication. .P If stdin is longer than .IR right-hand-stream , the remainder of stdin is printed without any changes. If stdin is shorter than .IR right-hand-stream , the remainder of .I right-hand-stream is ignored but may be partially read. .SH SEE ALSO .BR blind (7), .BR blind-arithm (1), .BR blind-norm (1), .BR blind-dot-product (1), .BR blind-quaternion-product (1), .BR blind-vector-projection (1) .SH AUTHORS Mattias Andrée .RI < maandree@kth.se >