Github user imatiach-msft commented on a diff in the pull request:
https://github.com/apache/spark/pull/20168#discussion_r160316719
--- Diff: mllib/src/main/scala/org/apache/spark/ml/image/ImageSchema.scala
---
@@ -143,12 +174,12 @@ object ImageSchema {
val height = img.getHeight
val width = img.getWidth
- val (nChannels, mode) = if (isGray) {
- (1, ocvTypes("CV_8UC1"))
+ val (nChannels, mode: Int) = if (isGray) {
--- End diff --
ah, sorry, I see, I was confused by the description, if we aren't
supporting float images for reading that makes sense now
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