Comments on: Rock Images: Petroglyphs and Pictographs differences https://pmags.com/rock-art-petroglyphs-and-pictographs-differences Practical advice and musings on the outdoors, hiking, backpacking, ski touring, and camping. Sun, 03 Jan 2021 01:13:55 +0000 hourly 1 By: Paul Mags https://pmags.com/rock-art-petroglyphs-and-pictographs-differences#comment-668839 Fri, 08 Mar 2019 20:06:13 +0000 https://pmags.com/?p=23493#comment-668839 In reply to Brian Snyder.

Thx for sharing. I am familiar with the technique, but don’t like the look for non-academic use. I try to keep my use of filters relatively low.
Just a personal preference! And thx for the kind words!

]]> By: Brian Snyder https://pmags.com/rock-art-petroglyphs-and-pictographs-differences#comment-668829 Fri, 08 Mar 2019 18:35:57 +0000 https://pmags.com/?p=23493#comment-668829 A fun trick that archaeologists use with these, particularly petroglyphs, is to put a negative filter on the picture if the panel is crowded or partially eroded. It can really make some of the design elements pop out that are otherwise obscured. It works especially well in photo editing software where you can use a slider bar to manipulate the values.

Great photos, and thanks for always using your platform to promote preservation of these types of resources!

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