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Assigning Map Information to PDS Images in ENVI

In ENVI, you can assign map information to a PDS image based on values from the PDS label.   1. Download an image and corresponding PDS label file (.lbl extension) to the same directory. 2. Open the image in ENVI. It will not be map projected. 3. Select File > Edit ENVI Header and select the image. Click OK. 4. From Edit Attributes, choose Map Info... 5. Click Change Proj. 6. Unless you already have the correct lunar projection, create a new one (steps below assume projection does not

Jennifer Ward

Jennifer Ward

 

Finding additional MER and Phoenix data sets

In the MSL, MER, and Phoenix Analyst's Notebooks, standard data sets can be found in the sol summaries, but additional data sets can be accessed, as well.   These data sets can be located through Resources for Curiosity, Spirit, Opportunity, and Phoenix. Both the MER and Phoenix resources offer additional data sets, data set documents, and a reference list.   In MER's additional data sets, you can access: APXS Oxide Abundance Data MI Merged Focal Sections

Christina Kreisch

Christina Kreisch

 

Downloading MER and Phoenix images for ENVI

Through the MER and Phoenix Analyst's Notebooks, sequences of images taken by Navcam, Pancam, Microscopic Imager, and Hazcam can be downloaded as multi-band ENVI formatted images for use with ENVI image processing software.   The images can be downloaded under Sequence Download in the Product Sequence menu for any sequence 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"

Christina Kreisch

Christina Kreisch

 

Creating an RGB image from MER and Phoenix data

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

Christina Kreisch

Christina Kreisch

 

Creating an anaglyph image from MER and Phoenix data

One of the unique features of the MER and Phoenix Analyst's Notebooks is being able to create an anaglyph image from a pair of images taken by the Navcam, Pancam, or Hazcam stereo cameras.   The anaglyph feature is found under Image Processing in the Product Sequence menu for a given stereo pair 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

Christina Kreisch

Christina Kreisch

 

Getting ENVI to open your PDS image correctly

Applies to ITT ENVI image processing software versions 4.8 and earlier.   PDS images do not always open correctly in ENVI because of a bug in ENVI's PDS image reader. A fix is promised with the ENVI 5.0 release. In the meantime, here is a workaround for the problem.   Step 1. Get the correct image information from the PDS label.   The PDS label describes the image data. You will need to determine the following values from the PDS label: Image offset (in bytes) Number of samples and

Tom Stein

Tom Stein

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