digitising using erdas software
DESCRIPTION
digitizing of a Raster using ERDAS softwareTRANSCRIPT
![Page 1: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/1.jpg)
DIGITIZATION USING ERDAS
By
SWETHA.A
5WD12CGI15
![Page 2: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/2.jpg)
Run ERDAS software Open a new viewer i.e. viewer1
![Page 3: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/3.jpg)
Open a Raster image(JIFF Format)
![Page 4: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/4.jpg)
Open a new vector layer
![Page 5: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/5.jpg)
POLYGON FEATURE DIGITIZATION
![Page 6: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/6.jpg)
Make sure to open the new vector layer in .shp (shapefile) format and name it.
![Page 7: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/7.jpg)
Select shapefile type as polygon.
![Page 8: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/8.jpg)
Vector tool box appears as shown below..
![Page 9: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/9.jpg)
Use symbol to draw polygon features which are present on satellite image.
![Page 10: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/10.jpg)
Output file only with polygon features are depicted.
![Page 11: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/11.jpg)
LINE FEATURE DIGITIZATION
![Page 12: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/12.jpg)
Make sure to open the new vector layer in .shp (shapefile) format and name it.
![Page 13: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/13.jpg)
Select shapefile type as “Arc Shape(Line)”.
![Page 14: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/14.jpg)
Vector tool box appears as shown below..
![Page 15: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/15.jpg)
Use symbol to draw line features which are present on satellite image.
![Page 16: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/16.jpg)
Output file only with Line features are depicted.
![Page 17: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/17.jpg)
POINT FEATURE DIGITIZATION
![Page 18: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/18.jpg)
Make sure to open the new vector layer in .shp (shapefile) format and name it.
![Page 19: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/19.jpg)
Select shapefile type as “Arc Shape(Line)”.
![Page 20: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/20.jpg)
Vector tool box appears as shown below..
![Page 21: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/21.jpg)
Use symbol to draw line features which are present on satellite image.
![Page 22: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/22.jpg)
Output file only with ‘Point’ features are depicted.
![Page 23: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/23.jpg)
COMBINATION OF ALL LAYERS
![Page 24: Digitising using ERDAS software](https://reader033.vdocuments.net/reader033/viewer/2022061217/54b5ba734a79595d5f8b45fb/html5/thumbnails/24.jpg)
THANKS