Frequently Asked Questions

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Question:
What does the browse represent for ALI and Hyperion?

Answer:
For Hyperion, browses are created from the Level 0 (raw) data. Due to this, vertical lines, zero data values from sensor artifacts may appear in the browse. Note that this anomaly is corrected during Level 1 processing. Hyperion browses are the monochromatic; VNIR band 40. Each band is linearly stretched between the 1% and 97% histogram values. The data is also reduced by a factor of 4 in each direction and jpeg compressed with a quality of 75%.

ALI browses are generated from the Level 1 data and displayed as RGB (4:3:1). Each band is linearly stretched between the 1% and 97% histogram values. The data is also reduced by a factor of 8 in each direction and jpeg compressed with a quality of 75%.