<div dir="ltr"><div>Dear GDAL Developers, <br></div><div><div>I have an overview problem with my Cloud Optimized GeoTIFF.</div><div>I tried to translate a 16 bit, 4 bands ortho image to a COG 8bit, 3 bands image with JPEG compression.</div><div><br></div><div><a href="https://pasteboard.co/CLur6VdD0CwQ.jpg">That is the original image.</a><br><a href="https://pasteboard.co/MJv3lOjlI8iM.jpg">That is the result.</a><br></div><div><br></div><div>It works fine with LZW compression, but I need the JPEG compression. What am I doing wrong?<br></div><div><br></div><div>Thanks, </div><div>Niki</div><div><br></div><div><br></div><div>Here is my code.</div><div><font face="times new roman, serif" size="1">        for raster in glob.glob(str(parameters[self.INPUT_Pfad])+'/*.tif'):<br>            fileInfo = QFileInfo(raster)<br>            baseName = fileInfo.baseName()<br>            file_name = str(parameters[self.INPUT_Pfad])+'/'+baseName+'.tif'<br>            feedback.pushInfo(file_name)<br>            output_file1 = str(parameters[self.OUTPUT_Pfad])+'/'+baseName+'.tif'<br>            output_file2 = str(parameters[self.OUTPUT_Pfad])+'/'+baseName+'_cog.tif'<br>           <br>            # Create COG<br>            x_size = 6250<br>            y_size = 5000<br>            num_bands = 4<br>           <br>            src_ds = gdal.Open(file_name)<br>            format = "GTiff"<br>            driver = gdal.GetDriverByName(format)<br>             <br>            # Translate<br>            translate_options = gdal.TranslateOptions(format = 'COG', outputType = gdal.GDT_Byte, bandList =                                                     [1,2,3],  scaleParams=[''],<br>                                          creationOptions = ['TILED=YES','COMPRESS=JPEG','BIGTIFF=IF_NEEDED',                                                      'BLOCKXSIZE=512', 'BLOCKYSIZE=512', 'RESAMPLING=NEAREST',                                                                'OVERVIEWS=IGNORE_EXISTING', 'INTERLEAVE=PIXEL']<br>                                          )<br>            gdal.Translate(output_file1, src_ds, options=translate_options)<br><br>            translate_options = None<br>            src_ds = None</font></div></div></div>