map2cam

This program will geometrically transform a map projected image (ISIS level2 cube or mosaic) into an ISIS level1 cube using a level1 cube as input to match. This allows for example a Viking base map to be converted to a MOC raw geometry image.

The main purpose of this program is to facilitate control point selection between a level1 cube and a base map. The MATCH image and the resulting TO file can be opened in the program qnet along with other level1 cubes for building a control network with ties to ground.

Description

The specification of the input cube to be projected. The cube must contain a valid Mapping group in the labels.

Type	cube
File Mode	input
Filter	*.cub

Description

This cube defines the raw instrument geometry to be matched. The output file will have the same labels (Kernels and Instrument group). Note the Band group will represent data from the raw camera and the content of the cube may not match. For example, using the MOLA base as the FROM file and a MOC Wide Angle Red cube as the MATCH, will have labels which indicate geometry for the MOC WA red camera but the pixels will contain MOLA elevations.

Type	cube
File Mode	input
Filter	*.cub

Description

This cube will contain data whose geometric properties are identical to those of the MATCH cube.

Type	cube
File Mode	output
Filter	*.cub

Description

This is the type of interpolation to be performed on the input.

Type	string
Default	CUBICCONVOLUTION
Option List:	Option Brief Description NEARESTNEIGHBOR Nearest Neighbor Each output pixel will be set to the pixel nearest the calculated input pixel. BILINEAR Bi-Linear interpolation Each output pixel will be set to the value calculated by a bi-linear interpolation of the calculated input pixel. CUBICCONVOLUTION Cubic Convolution interpolation Each output pixel will be set to the value calculated by a cubic convolution interpolation of the calculated input pixel.

In this example, the map2cam application is used to map a base map into the same geometry as the matching Messenger level 1 image. The output file can then be used to select control points. Sometimes matching features can be found easier when features when a comparing level 1 image to another level 1 image.

map2cam from=M10_Equi_1000meters_Clon180.cub match=EN0108821402M.cal.cub to=M10_match_EN0108821402M.cub interp=CUBICCONVOLUTION

Example GUI Screen shot of GUI with parameters filled in to create a level 1 version of a base map for selecting control in a Messenger image.

Basemap image from Mariner 10	Input level 2 image (map) Parameter Name: FROM This is the image that will be mapped into a level 1 image using the geometry of the MATCH image.
Messenger image to match	Image to match Parameter Name: MATCH The geometry of this image will be used to create the level 1 version of the FROM image, which will be output as the TO image.

Mariner 10 basemap mapped into Messenger level 1 space

Output image Parameter Name: TO The level 1 version of the FROM image