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Found 13 results

  1. Good afternoon. I'm an undergraduate student of geomatics and remote sensing, and I was trying to use the CRISM images to classify minerals and chemical compounds on the surface of Mars. I collected some information about all the products to use, also I followed the workflow proposed here and I installed CAT on ENVI. I was trying to use a an image of the Jezero Crater data product: frt00005c5e_07_if166j_mtr3, which is projected, atmosferically and geometrically corrected. The data is on I/F which as is explained here, on the FAQs means: Q: What does I/F stand for? A: CRISM
  2. I want to georeference an M3 image (obtained via PDS) in ENVI. I was following "Assigning Map Information to PDS Images in ENVI", posted by Dr June Wang. I was able to perform most of the steps. Yet when the process is complete, it seems that the georeferencing is not correct. I have attached a couple of screenshots from the M3 image I was working with. To check the accuracy of georeferencing, I cross-checked the location from Google Moon and found that there are a lot of discrepancies between the 'georeferenced' M3 image and Google Moon. In the 'Edit Map Information' window, I entered X-
  3. Hi, I am working with CRISM data on the McLaughlin Crater . I have downloaded following IR dataset images FRT0000CB488_07_IF166L_TRR3 FRT000139F7_07_IF166L_TRR3 FRT000247A0_07_IF166L_TRR3 HRS00006AC4_07_IF175L_TRR3 FRS00029E22_01_IF168L_TRR3 FRS0002B4DA_01_IF168L_TRR3 FRS0002C9DC_01_IF168L_TRR3 FRS0002DB50_01_IF168L_TRR3 FRS0002EF79_01_IF168L_TRR3 FRS0002FF3C_01_IF168L_TRR3 FRS0003134A_01_IF168L_TRR3 FRS00035729_01_IF168L_TRR3 FRS0003640C_01_IF168L_TRR3 FRS0003705A_01_IF168L_TRR3 FRT00009CAE_07_IF
  4. Hello My name is Vidyesh Sathe, I am actually working on my Dissertation in Planetary Geology, I am pretty new to Crism Data Set and Analysis of Crism Data. I am using Data set which is frt0001176e_07_if164ds_trr3.img and frt0001176e_07_if164l_trr3.img, i am using both VNIR And IR data. sir I followed the process given in CRISM Demonstration: Data Access, Processing, and Analysis - 3rd Planetary Data Workshop 2012, After pre-processing given in presentation, I wanted to Combine both VNIR and IR data. so i followed standard Envi process which is, Envi-Basic Tool-Layer stacking I
  5. Hi community, I'm working with ENVI 5.3 + IDL coupled with CAT 7.4 trying to process TRDR images (.trr3). I'm based primarly on the CRISM data processing workshop from 2012 and 2017 and my worksteps are as follows: 1.- Apply the ATM corrections with CAT to the images 2.- Apply de map projection fo the image 3.- Obtain the summary parameters image Nevertheless, I have certain doubts about this, so I would be very grateful if you can provide me some help please. My questions are: - Should I obtain the summary parameters and then apply the map projection or it is the opp
  6. A new version of OMEGA Analysis Tool (OAT) for ENVI, version 1.0.2, is now available. OAT is a collection of ENVI and IDL procedures for reading, displaying, and analyzing OMEGA data, based on the OMEGA team's SOFT10 code. It supports ENVI 5.4+. Currently, installation instructions are only available for Windows. OAT can be downloaded from the Online Tools section of this page.
  7. Note for ENVI users of map-projected data: Some Geosciences Node hosted map-projected data sets (.IMG files) are not read by ENVI as projected data sets. Using the Geospatial Data Abstraction Library (GDAL) gdal_translate command, users can easily convert most of these data products into GeoTIFF or ENVI file formats which are read by ENVI as projected data. GDAL packages for various computer systems can be found here: https://trac.osgeo.org/gdal/wiki/DownloadingGdalBinaries. The Windows package used in this example is the OSGEO4W 64-bit version. A MacOS X build is available, as well. Downlo
  8. Hello, I installed CAT 7.3.1. in ENVI 5.4 as per the instruction. ENVI shows CAT tool neither in menubar nor under Display. An extension toolbox has created named ''cat_menu'' (see attachment). But, this icon doesn't work also! How can I fix this? Thank you,
  9. Hi, I've come across many workshop presentation papers and research papers in which the processing of CRISM images include 'Spectral Smile Removal' and the entire sequence of Empirical Processing. 1. When we download the TRR3 data, is it already taken care of? Or do we have to follow a certain algorithm to manually apply it? Can you please suggest me how to do it? It is not mentioned in any workshop papers. 2. If we have to manually perform this task, do we have to do it via IDL/MATLAB programming or is it possible to do so in a GUI software (viz CAT, ENVI)? Thank You
  10. I wonder if anyone would have a good book recommendation for getting stuck into ENVI+IDL coding with a focus on this type of data? Has anyone self taught with a particularly useful book?
  11. The CRISM Analysis Tool (CAT) is a collection of ENVI and IDL procedures for reading, displaying, and analyzing MRO CRISM data. CAT is now available for ENVI versions 4.x and 5.x, for both Unix and Windows systems. See details at http://pds-geosciences.wustl.edu/missions/mro/crism.htm#Tools.
  12. Hello, I'm new to SHARAD data and facing problems viewing the 2D radargrams. I have tried to open them with NASAView but it is only showing me columns of numbers. I tried to open the images with ENVI but even with different combinations of header offset, columns and rows, I am not able to view the radargrams. The browse images are there, but to analyze the images I need to view them in ENVI. Could someone please tell me how I might be able to visualize the radargrams in ENVI? (A sample header file for a SHARAD rdr file would also be very helpful). Thank you! Ranjan
  13. Dear All, As I am working in Planetary Sciences, I use hyperspectral imagery for analysis of spectral characteristics of minerals in extra - terrestrial body. I found that CAT_ENVI extension is useful for such analysis. I did download and tried to install as per the instruction found in http://pds-geosciences.wustl.edu/missions/mro/crism.htm I am using ENVI 4.7 with IDL 7.1 in Windows 7. I added command lines as per given in the user guide. There was no errors while i Installed. But I couldn't find the 'CAT_ENVI' tab in ENVI menu. Can anyone suggest me how t
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