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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The first thing to do is to create a True Colour composite image.
Note that we don’t have Band 6L or 6H data. How far west from Madrid is the lake in the top of the image? Add the three imagebands band1 as blue, band2 as green, and band3 as red. For icrisi lab, and the succeeding labs, you will be using Windows Explorer to copy, paste, unzip and zip the data:. After some time you should see an image of the the first band appear on your screen.
GEOB Lab 3: Introduction to IDRISI
Add text labels for Hope, Harrison and Chilliwack you can add more if you wish: When you use the Ortho tool, you are creating an orthographic image. This exercise is optional, but it does demonstrate some of the ‘neat’ capabilities of Idrisi. Note that this term differs from orthophoto. From within the Raster Group, display Landsat 6 and Landsat Then, click on the Group Link button and zoom into the band 6 image; selvs should then also zoom into the same area in the Landsat image.
In the second week, complete the rest of Part 1, Exercises 1. Select Text as the Layer Type.
GEOB 373: Introductory Remote Sensing
Week of February 11 th you have two weeks for this lab. There is no save icon do not worry about this.
In the IDRISI tutorial the first convention ordered by increasing wavelength was followed as discussed in footnote 19 on page 27 of the Tutorialso we shall follow that convention in our labs. If you click on the Files tab you should see a list of the files stored in the Using Idrisi directory.
Double-click on the zip file Landsat Right click on the aelva pathname which might be C: Select a font size of Home Syllabus Schedule Projects.
Surfaces — Fly through and Illumination. Layer Interaction Effects 1. Remote Sensing Geob Navigation Map Query Question 9: Since remotely sensed images are large, please do not copy any data to your H: Using Windows Explorer, go to: You should now see a Landsat95 folder within C: Print your band 6 image.
One of the first steps you must complete before starting most Digital Image Analysis DIA projects is to import the data i. Surfaces — Fly through and Illumination This exercise is optional, but it does demonstrate some of the ‘neat’ capabilities of Idrisi. The goal of this lab is to give you the foundations for working with IDRISI, the image processing program that you will be using in all of your subsequent labs, and for your final project. What does NDVI stand for? To create a true colour composite of bands 1, 2 and 3: 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.
This will save your composition for further editing. Advanced GIS Geob What is the formula i. Note that the project and working directories you will be using are different from those specified in the tutorial on page 6, Exercise d and e: If you are finished, print your map composition using the Print command in the Map Composer.
However, remember that with this experience you can put down in your resume that you have some working knowledge of image processing. For this lab, and the succeeding labs, you will be using Windows Explorer to copy, paste, unzip and zip the data: Dirisi should give you a false colour near IR composite of the Fraser Valley.
What features turned ‘black’ in the image after adjusting the contrast? What features in particular stand out in the image the ‘fuzzy worms’ 5 Question This dataset is from Spain.
Given the length of this lab, you should budget your time accordingly. Hand in the results of your Transparency exercise.
Layer Interaction Effects Question 7: In the Explorer window, click on Files and you should see all sleva bands listed.
Repeat selca each city; you can add more names if you like e. Another window will appear, in which you enter the name of the city Caption.
What features in particular stand out in the image the ‘fuzzy worms’ 5.