Last update:
15/11/2006

YELLOW TONE

Applying yellow tone is an effective method for improving the three-dimensional appearance of a shaded relief. The gray relief shading is combined with a bright yellow tone on the sunlit slopes. Inverting the gray scale shading and masking the flat areas can produce a printing plate for the yellow tone.

Gray scale shading from a © swisstopo map 1:25,000 (left). On the right the negative of the same shading in yellow. Flat areas have been masked.

Top left relief shading, top right yellow tone, bottom left map with relief shading, bottom right map with relief shading and yellow tone © swisstopo.

The yellow tone is also accomplishable with modern digital tools. Tom Patterson published a tutorial explaining how to apply colored illumination to shaded relief images using Adobe Photoshop.

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Last update:
15/11/2006

YELLOW TONE

Gray scale shading from a © swisstopo map 1:25,000 (left). On the right the negative of the same shading in yellow. Flat areas have been masked.

Top left relief shading, top right yellow tone, bottom left map with relief shading, bottom right map with relief shading and yellow tone © swisstopo.

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Yellow Tone

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Last update: 15/11/2006

YELLOW TONE

Gray scale shading from a © swisstopo map 1:25,000 (left). On the right the negative of the same shading in yellow. Flat areas have been masked.

Top left relief shading, top right yellow tone, bottom left map with relief shading, bottom right map with relief shading and yellow tone © swisstopo.

Last update:
15/11/2006