High order interpolation can lose the alpha channel when scaling images

Description

GEOT-6135 introduced a regression that causes high order interpolation when scaling images to lose the alpha band from the source image if the JAI.KEY_IMAGE_LAYOUT rendering hint is not set. GeoPackage is one example of a coverage reader that is affected by this although there may be others.

Environment

None

Status

Assignee

Daniele Romagnoli

Reporter

Steve Ikeoka

Triage

None

Components

Fix versions

Affects versions

21-RC
20.1

Priority

Medium
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