Total reads processed: reads with a valid barcode or corrected barcode.
Reads with adapters: reads with sequencing adapters or reads two with poly A(read-through adpaters).
Reads that were too short: reads with read length less than 20bp after trimming.
Reads written (passing filters): reads pass filtering.
Total basepairs processed: total processed base pairs.
Quality-trimmed: bases pairs removed from the end of the read whose quality is smaller than the given threshold
Total written (filtered): base pairs pass filtering.