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<p style="margin-bottom:0cm">Hi All,<br></p><p style="margin-bottom:0cm">(full text and images at <a href="https://docs.google.com/open?id=0B6J5ZA1hu93bYm9IWXdlVHM1N1U">https://docs.google.com/open?id=0B6J5ZA1hu93bYm9IWXdlVHM1N1U</a> )<br>
</p><p style="margin-bottom:0cm">Recently landuse=farmland (or simply landuse=farm) has been added to fields near me. This has led to a discussion about
how the rendering 'looks' with some arguing that it doesn't look that good. I believe that this may be due to the shade
of colour used – specifically the farmland 'brown' is not as
luminous as the default 'grey' (actually I think it 'lightness'
rather than 'luminosity' that matters to the human eye but I got very
confused when searching the two).</p>
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</p>
<p style="margin-bottom:0cm">Consider the image below, showing
current rendering:</p><p style="margin-bottom:0cm"><a href="https://docs.google.com/open?id=0B6J5ZA1hu93bZDBTN2dZZkpDenc">https://docs.google.com/open?id=0B6J5ZA1hu93bZDBTN2dZZkpDenc</a></p><p style="margin-bottom:0cm">
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</p><p style="margin-bottom:0cm">On the left we have farmland tagged.
The 'brown' has a Lightness value of 83 percent (luminance of 85%).
Compare this to the default canvas 'grey', which has 93 percent
Lightness (and 93 percent luminance).</p>
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</p>
<p style="margin-bottom:0cm">Now consider the following (and please
check your screen calibration at <a href="http://www.photofriday.com/calibrate.php">http://www.photofriday.com/calibrate.php</a> ). I have taken the farmland 'brown' and raised it's
Lightness to the same 93 percent as the default 'grey' (that is, I
have left the Hue and Saturation the same):</p><p style="margin-bottom:0cm"><a href="https://docs.google.com/open?id=0B6J5ZA1hu93bSzk5NDZVMm5GZkE">https://docs.google.com/open?id=0B6J5ZA1hu93bSzk5NDZVMm5GZkE</a></p><p style="margin-bottom:0cm">
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</p><p style="margin-bottom:0cm">In this final image, I have adjusted
the Hue and Saturation to provide more of a 'green':</p><p style="margin-bottom:0cm"><a href="https://docs.google.com/open?id=0B6J5ZA1hu93bZXhzdVJMVU44X2M">https://docs.google.com/open?id=0B6J5ZA1hu93bZXhzdVJMVU44X2M</a><br>
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</p><p style="margin-bottom:0cm">What are your thoughts? Which do you
prefer? Have I gone too 'light' with the change and should some value
in-between be used instead? Am I barking up the wrong tree?</p>
<p style="margin-bottom:0cm"><br></p>
<p style="margin-bottom:0cm">Regards,</p>
<p style="margin-bottom:0cm">Rob</p>
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</p>
<p style="margin-bottom:0cm">Note: To focus discussion I want to
avoid the argument that some people see farmland as the default and
therefore it does not need to be tagged – it is a legitimate
land-use tag and if people want to tag it then let them.</p>
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