public void handle(Directory directory, Metadata metadata) {
            try {
                handleDateTags(directory, metadata);
                handlePhotoTags(directory, metadata);
                handleCommentTags(directory, metadata);
            } catch (MetadataException e) {
                // ignore date parse errors and proceed with other tags
            }
        }
Basic image properties for TIFF and JPEG, at least.
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-image-module/src/main/java/org/apache/tika/parser/image/ImageMetadataExtractor.java