File:Mars Viking 21i093.png
Own work based on images in the NASA Viking image archive
See accurate colors at: PIA00571: Ice on Mars Utopia Planitia Again
Author
"Roel van der Hoorn (Van der Hoorn)"
Permission
(Reusing this file)
I used the original 21i093.blu, 21i093.grn and 21i093.red images from the NASA Viking image archive, converted them to .png, manually removed the noise and finally merged them into one image (almost matching true color; see here for the channel mixing process). Except for the conversion, this was all done in Adobe Photoshop CS2 and Adobe Photoshop CS4. The original files by NASA are in the public domain, and so is this new one.
Other versions
I created this image as a replacement for File:Ice on Mars Utopia Planitia (PIA00571).jpg and File:Viking2 frost enhance.jpg. These files were created by NASA, but the quality is not very high. Using the original pictures from the Lander archive resulted in a higher quality image.
See accurate colors at: PIA00571: Ice on Mars Utopia Planitia Again
العربية: صورةٌ لسطح كوكبِ المريخ مُلتقَطة في التاسع من كانون الأول/ديسمبر عام 1977
(Reusing this file)
Licensing
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This work has been released into the public domain by its author, Van der Hoorn at English Wikipedia. This applies worldwide. In some countries this may not be legally possible; if so: Van der Hoorn grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
The image is based on an original image from NASA to which the following copyright statement is applicable:
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |  |
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Warnings:
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