: 27 Other than previous versions of the standard, which specified glyph shapes via reference drawings, the new revision would have included the shapes in machine-readable form. : 26 A request to extend OCR-B with Vietnamese accents was rejected. The final draft would have extended OCR-B with 40 Latin and 10 Greek letters for six Latin letters, the draft gave new alternate shapes.
Started, producing three successive draft documents. : 27 A revision of the ISO 1073-2:1976 standard was therefore The request was generalized to extend OCR-B with a number of Latin and Greek letters used in European languages.
Ocr font microsoft iso#
In 1993, Turkey proposed extending ISO 1073-2 to include the Turkish letters Ğğ, İı, and Şş. It added the symbols § and ¥ to OCR-B two types of erasure marks (█) for blackening out mis-printed characters were added and the length of the Vertical bar was changed to match ISO 1073-2. In March 1976, ECMA published a third revision of its ECMA-11 specification. ECMA published the second edition of OCR-B in October 1971. The new revision removed font size II, which had been rarely used in practice it deleted five character shapes and it added a new font size IV. To make OCR-B more widely accepted, the shapes of some characters were slightly modified. In September 1969, ECMA started work to revise its published standard. The specification included a Letterpress design, intended for high-quality printing equipment and a rounded-edge Constant Strokewidth design for impact printers : 3 with reduced typographic quality. The first revision contained three font sizes: I, II and III. In February 1965, ECMA proposed a design for the “Class B” font to ISO, who adopted it as international standard ISO 1073-2 in October 1965. After evaluating existing OCR designs, it was decided to develop two new fonts: A stylized design with just digits, called “Class A” and a more conventional type design with broader character coverage, called “Class B”. In June 1961, the European Computer Manufacturers Association (ECMA) started standardization activities related to Optical Character Recognition (OCR).
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