if an image only contains gray colors, is there still any need to convert it
to a grayscale image?
BTW,I think an image only contains gray colors is a grayscale image.
------------------ Original ------------------
From: "Sean Fisk";<[email protected]>;
Date: Tue, Jan 14, 2014 11:09 AM
To: "iMath"<[email protected]>;
Cc: "pyside"<[email protected]>;
Subject: Re: [PySide] Does isGrayscale() can tell whether a color image
cansafely be converted to a grayscale image?
I would presume that if an image only contains gray colors, it can be safely
converted to a grayscale image. Since allGray() and isGrayscale() indicate the
former, that would also mean they indicate the latter.
--
Sean Fisk
On Sun, Jan 12, 2014 at 6:21 AM, iMath <[email protected]> wrote:
In the Image Formats part of QImage doc says
"
The allGray() and isGrayscale() functions tell whether a color image can safely
be converted to a grayscale image.
"
but in the doc of there 2 functions indicate they're used to decide whether an
image is grayscale image ,not mentioned they could be used to tell whether a
color image can safely be converted to a grayscale image.
what about your opinion ?
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