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[Octave-bug-tracker] [bug #49941] image package: rgb2gray of a single im

From: anonymous
Subject: [Octave-bug-tracker] [bug #49941] image package: rgb2gray of a single image produces a double image
Date: Thu, 26 Jan 2017 10:05:57 +0000 (UTC)
User-agent: Mozilla/5.0 (Windows NT 6.1; Trident/7.0; rv:11.0; chromeframe/29.0.1547.76) like Gecko 
Follow-up Comment #1, bug #49941 (project octave):

Actually, it might be an idea to handle the line

gray = im2double (rgb)...

differently and convert to double only in the case of uint8/uint16. This way
if the input is single, the calculation is also done at single precision
(saves a lot for very large images).

Also see bug #50152

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