Fix tsv convert
Image save w/o compression from pil/base64; clean util code; TSV doc … … (#47) * Add image save without compression from pil or base64; clean up util code; doc on TSV *
Image save w/o compression from pil/base64; clean util code; TSV doc … … (#47) * Add image save without compression from pil or base64; clean up util code; doc on TSV *