Exploring More With the Images on Planet Four

We’ve added some new features in the past few months, to help make it easier for you to further explore the HiRISE images that you’re classifying on http://www.planetfour.org, and I thought I’d spend a blog post highlighting them. The full HiRISE frames are quite large (typically 2024 pixels in width and 20,000 pixels in height) and to show on the main site we divide them into smaller overlapping cutouts that we  ask you to mark fans and blotches in. For each cutout, you can use our discussion Tool (Planet Four Talk), to talk about interesting features you’re seeing, and it is through Talk that can you access the site’s new features.

After you’ve marked the fans and blotches (if any) for the image presented on Planet Four and hit the ‘Finish’ button, you’ll see the ‘Next’ button and below it the ‘Discuss’ button appear. If you hit Discuss, it will take to you to the cutout’s dedicated page on Talk (Here’s an example for cutout APF0000zcd). This is where you can add 140 character comments about the image as well as start longer discussions about questions you have or  thoughts and theories with other members of the Planet Four community and the science team.

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Click on Discuss after hitting the Finnish button in the main interface and it will take you to the Talk page for this cutout

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Talk page

While on the Talk specific page for the cutout, if you see a feature you want to examine in more detail, place your mouse over the image. We have added a magnifying glass tool that will appear on the right with a zoomed in version of the image (see below).

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Magnifying glass feature in Talk. Move your mouse over the spot in the image you want to see enlarged

In addition, we’ve added links on Talk to the original HiRISE image (hosted on the HiRISE website) that the cutout you examined is derived from  (for an example here’s the page for APF0000zcd). Click on the View HIRISE image link below the image on Talk. From there, you’ll be directed to the  HiRISE website, where  you can download the full frame observation (we currently use the RGB color non-map projected images) as well as find links to observations taken close to the area over the past 4 Martian monitoring seasons (just scroll to the bottom of the page).

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HiRISE website page for full frame image that APF0000zcd is derived from

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Bottom of HiRISE page with links to nearby observations

Don’t forget you can always explore Talk at any time by going to http://talk.planetfour.org/ and explore the discussions and images that other volunteers have recently classified or commented on.

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