How To Convert Geotiff To Jpg In Python Or Java?

i have a geotiff images that have 3bands. band1,2 is a actual image values and band3 is a instance angle value. band1,2 is float32 data type under code is that i try before. but it

Solution 1:

You can use gdal.Translate for this.

You can read the documentation here

from osgeo import gdal
    
options_list = [
    '-ot Byte',
    '-of JPEG',
    '-b 1',
    '-scale'
]           

options_string = " ".join(options_list)
    
gdal.Translate(
    'save_image_path.jpg',
    'image_path.tif',
    options=options_string
)

The above code simply create a jpg file with band 1 scaled into byte range. You could add more bands by adding, '-b 2' etc. Also notice that scale automatically wraps the entire range into byte range. If you like something else you could use '-scale min_val max_val' in order to specify the range you like, since often you have no need of either the lowest or highest values available.

Solution 2:

The above worked well for me except the JPEG resolution wasn't great. Swapping JPEG to PNG worked better.