public String toStringBrief(){
  return String.valueOf(cols) + "x" + rows+ (bitDepth != 8 ? ("d" + bitDepth) : "")+ (alpha ? "a" : "")+ (indexed ? "p" : "")+ (greyscale ? "g" : "");
}

public String toStringBrief ( ) { return String . valueOf ( cols ) + "x" + rows + ( bitDepth != 8 ? ( "d" + bitDepth ) : "" ) + ( alpha ? "a" : "" ) + ( indexed ? "p" : "" ) + ( greyscale ? "g" : "" ) ; }
brief info : colsxrows [ dbitdepth ] [ a ] [ p ] [ g ] ( the default dbitdepth = ' d8 ' is ommited )
