tree d2f83e7b40107d7f4ede97056514c6f340869cda
parent b2d744f611613af0685e7875e23ef45bbe724565
author ChaiShushan <chaishushan@gmail.com> 1379812913 +1000
committer Nigel Tao <nigeltao@golang.org> 1379812913 +1000
golang-hg 14beb99f9689854ca90261962e25fdeec59abfea

go.image/tiff: encoder fix non LZW Predictor and Paletted SamplesPerPixel and non RGB ExtraSamples.

TIFF6.0 Spec:
Page 31: ExtraSamples can only included in RGB mode image.
Page 39, SamplesPerPixel is usually 1 for bilevel, grayscale, and palette-color images.
Page 64, Currently Predictor field is used only with LZW.

Fixes golang/go#6421.

R=bsiegert, nigeltao, gbulmer
CC=golang-dev
https://golang.org/cl/13779043