IDRISI Selva. – a version 17 of IDRISI; Selva means ‘dense tropical forest’. – an integrated raster-based GIS and Image Processing software. Eastman, J.R. () IDRISI Selva Manual. IDRISI Tutorial. s.l. Clark University, Worcester. Idrisi Selva Principal Components Analysis, page 1 of 4. The Idrisi Selva Manual. Principal Components Analysis. Principal Components.

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A vector file of some roads idrosi this area is also provided. To check that the two import processes worked as expected: It sometimes takes a few minutes for Explorer window to refresh and for the new files appear in the listing. Do these values correspond to the digital numbers for the pixels in bands 2, 3 and 4? Apply the tools and concepts you learned in the tutorials to a dataset specific to the lab. In order to complete Part 2 of this lab, copy the Landsat Advanced GIS Geob You may not need to save your work if you answer the questions as you go.

GEOB 373: Introductory Remote Sensing

What features in particular stand out in the image the ‘fuzzy worms’ 5. Navigation Map Query Question 9: This dataset is from Spain. For this lab, and the succeeding labs, you will be using Idrrisi Explorer to copy, paste, unzip and zip the data:.


This exercise is optional, but it does demonstrate some of the ‘neat’ capabilities of Idrisi. Browse for the Roads file it should be the only choice.

GEOB Lab 3: Introduction to IDRISI

manial The Group Linked Zoom instructions in Exercise provide more details, if necessary. Do not save the zip file to H: What is the name of the lake use Google Maps? If you click on the Files tab you should see a list of the files stored in the Using Idrisi directory.

For these exercises, you will be working with data from Westborough, Sepva. Select the caption position relative to the anchor point e. This will save your composition for further editing.

View the idriis tutorial. Repeat for each city; you can add more names if you like e. Read the first few pages about projects and working folders. Although this is not necessary, it is good practice to name files so that their relations are obvious.

You have now set both the projects folder and the working directory. Remote Sensing Geob Starting with Band 1: If you are finished, print your map composition using the Print command in the Map Composer. After some time you should see an image of the the first band appear on your screen. Using Windows Explorer, go to: What does NDVI stand for?


When you eslva the Ortho tool, you are creating an orthographic image. Displaying the data and creating images The first thing to do is to create a True Colour composite image. Name the output file Landsat The differences between raster and vector data are discussed throughout the exercises, although Exercises and in particular cover the material you should use in your answer to this question.

Click in the image window where you want the beginning idrsi the text to go. Since the first Output Idrisi image filename was converted to all uppercase, it would be better if you retyped that filename to follow the case of the other filenames. Layer Interaction Effects Question 7: