How to Display a Large Image with Imagine

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If your image size is over 1280x1024 and you want to see the image without distortion, you need to use the ERDAS Imagine Viewer.

1. On the command line, enter: imagine
   This starts up the Imagine GUI interface.
2. Click the viewer icon and a Viewer window appears.
3. Call up your image.
1. In the Viewer window, click the window maximum icon on the upper-right corner of the window. The Viewer window is maximized to fit the screen.
2. Select File/Open/Raster or click the icon. A dialog box appears.
3. Go to the directory and choose the filetype (click the icon after the File Type to choose). You can see a list of the files available in that directory in your selected filetype.
4. Click the filename and click OK if your image is in standard image format such as tiff, gif, etc.
4. Select color or band options.
• If your image is pseudo color with one band or multi-band (3 or over), and you want to change or choose the band combination, click the Raster Options tab on the top of this dialog.
• If your image only has one band, you can display the image either as Pseudo Color or Gray Scale and click OK.
• If your data is DEM data, you can display as Relief, Pseudo Color or Gray Scale and click OK.
• If your image has three or more bands, you need to choose True Color. You can define the band number for Red, Green, and Blue by moving the arrow up or down, or type in the band number, and click OK. The default combination is set up in Session/Preferences.
5. Select View/Zoom/Default to get a full resolution view 1:1 of your image. You can also use the zoom icons to zoom-in or zoom-out. Move the scroll bars on the right side or the bottom of the window to scroll down or to the right side of the image.

Image or Raster Data Formats

These are Imagine's currently supported image or raster data formats:

ARC/INFO bil (*.bil)
ARC/INFO GRID Stack (*.stk)
DTED Level 1 & 2 (*.dtl)
ER Mapper (*.ers)
ERDAS 7.5 GIS (*.gis)
ERDAS 7.5 LAn (*.lan)
FIT (*.fit)
Generic Binary
Imagine image (*.img)
JFIF (*.jpg)
Raw (*.raw)
TerraModel Layer (*.pro)
TIFF (*.tif)
View (*.vue)

If you have an image in a format not listed above, you can use image conversion tools to convert the image to a supported format. The default format for the system is Imagine image (.img).