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Using the Analyst's Notebook

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Creating an RGB image from MER and Phoenix data

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Christina Kreisch

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One of the many features of the MER and Phoenix Analyst's Notebooks is the ability to create an RGB image from three images taken by the Pancam stereo cameras.

 

The initial steps to create an RGB image are the same as for creating an anaglyph image. The RGB feature is found under Image Processing in the Product Sequence menu for a given set of images. By going into "Sol Summaries" (for Spirit, Opportunity, or Phoenix), you will be able to select a sol and then view the data products from the "Report" menu. By choosing a sequence with stereo images, the product sequence overview page will be displayed. Click on "Image Processing" from the sequence menu (on the left of the overview page), and then click on "Create RGB" to open the dialog.

 

Here, you can choose individual frames as the red, green, or blue elements based upon the frames' wavelengths. For Pancam left eye images, selecting filters 2, 5, and 7 for red, green, and blue, respectively, will best approximate the human eye. After selecting the frames, the RGB image can be created for display or download.

 

For example, from Opportunity sol 13 let's use the Pancam sequence P2376 starting at SCLK 129339802:

 

RGB_ex_t.png

Click to enlarge.

 

The above screen shot shows the window after clicking the desired Pancam sequence (1P129339802EFF0300P2376L2C1) in the data products. Once you click on "Image Processing," your screen will look like the below image.

 

RGB_ex2_t.png

Click to enlarge.

 

After assigning the red, green, and blue images as left filters 2, 5, and 7, respectively, the completed RGB image (see below) is displayed.

 

RGB_t.png

Click to enlarge.

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