21 Января 2018: У нас обновился форум! Мы переехали на новый движок и снова открыли регистрацию.
Strips Those new to TIFF may not be familiar with the concept of "strips" embodied in the three tags RowsPerStrip, StripByteCount,StripOffsets.In general, third-party applications that read and write TIFF files expect the image to be divided into "strips," also known as "bands." Each stripcontains a few lines of the image. By using strips, a TIFF reader need not load the entire image into memory, thus enabling it to fetch and decompresssmall random portions of the image as necessary.The dimensions of a strip are described by the RowsPerStrip and StripByteCount tags. The location in the TIFF file of each strip iscontained in the StripOffsets tag.The TIFF documentation suggests using strips of an arbitrary size of about 8K. Although various application programs assert that they "prefer" bandedimages, research failed to uncover a single existing application that could not read a single-strip page where they could read the same file in a multi-strip format. Indeed, applications seem to be more sensitive to the total size of the decoded image and are not particularly fussy about banding. Thisresult is not surprising, considering that most desktop publishing programs are prepared to deal with massively larger images than those one finds infacsimile. In short, each page may be represented as a single strip of any length.In fact, there may be a compelling reason to employ a strip size equal to the length of one A4 page (297 mm). When a document is imaged, it may be ofany length. Not all fax machines, however, can accept unlimited length documents. Worse, the remote machine's page- length capability is not knownuntil the fax connection has been established. The solution is for the transmitting fax device to image long documents into A4-size strips, thenseam them together at transmission, after the capabilities of the remote fax machine is known.
