<div dir="ltr"><div>likely that it’s grayscale to begin with, and only loaded as color pic.<br><br></div>so it doesn’t lose information by converting it into a format that can only hold grayscale calues.<br></div><div class="gmail_extra">
<br><br><div class="gmail_quote">2014/1/14 iMath <span dir="ltr"><<a href="mailto:2281570025@qq.com" target="_blank">2281570025@qq.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><div>In the Image Formats part of QImage doc says</div><div>"</div><div>The allGray() and isGrayscale() functions tell whether a color image can safely be converted to a grayscale image.</div><div>"</div><div>
what does "safely" mean here ?</div></div><br>_______________________________________________<br>
PyQt mailing list <a href="mailto:PyQt@riverbankcomputing.com">PyQt@riverbankcomputing.com</a><br>
<a href="http://www.riverbankcomputing.com/mailman/listinfo/pyqt" target="_blank">http://www.riverbankcomputing.com/mailman/listinfo/pyqt</a><br></blockquote></div><br></div>