When you use ERDAS imagine for Satellite Image Processing of Raw data (Landsat8, 9, TIRS, OLI, ETM, TM, etc), generally , an error 'Unsupported compression type' appears. I have tried various versions of ERDAS 9.1, 2014, 2015. But the problem persists in all.
https://www.youtube.com/watch?v=VLsTkSBFYdw
https://www.wwu.edu/huxley/spatial/tut/raw_Landsat.htm
If you are encountering the "Unsupported compression type" error consistently in ERDAS Imagine when processing Landsat satellite images, it suggests that the specific compression format used in your image data is not supported by the ERDAS Imagine versions you have tried. To address this issue, you can consider the following steps:
Check Image Metadata: Examine the metadata associated with your Landsat images to identify the compression format used. Landsat images typically use formats like GeoTIFF, which can have various compression options, such as LZW, JPEG, or no compression.
Reformat Images: If the compression format is unsupported by ERDAS Imagine, you may need to reformat your Landsat images to a compatible format. Use a tool like GDAL (Geospatial Data Abstraction Library) to convert the images to a format that ERDAS Imagine can handle.
For example, you can convert a GeoTIFF with LZW compression to an uncompressed GeoTIFF using GDAL with a command like:
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gdal_translate -co COMPRESS=NONE input.tif output.tif
Use Supported Compression: When exporting or saving Landsat images from the source, choose a compression format that is supported by ERDAS Imagine. Commonly supported formats include uncompressed GeoTIFF, LZW-compressed GeoTIFF, or JPEG-compressed GeoTIFF.
Update ERDAS Imagine: Ensure that you are using the latest version of ERDAS Imagine. Newer versions may have improved support for different compression formats. Check if there are any updates or patches available for your ERDAS Imagine version.
Check Data Integrity: Verify the integrity of your Landsat image files. Corrupted or incomplete files can lead to errors. Ensure that you have downloaded the data correctly and that the files are not damaged.
Seek Technical Support: If the issue persists despite trying the above steps, consider contacting ERDAS Imagine technical support or their user community for specific guidance on handling your Landsat image data. They may have insights into resolving compatibility issues.
Alternative Software: If you continue to experience difficulties with ERDAS Imagine, you might explore alternative remote sensing software packages that offer robust support for Landsat data and various compression formats. Examples include ENVI/IDL, QGIS, or RSGISLib.
Remember that the exact steps you need to take will depend on the compression format used in your Landsat images and the capabilities of the specific version of ERDAS Imagine you are using. Always make sure to back up your data before making any significant changes or conversions.
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