1
Joan L Mitchell, Karen L Anderson: Method for converting an image from a run end or run length representation to a bit map. International Business Machines Corporation, George E Clark, Thomas P Dowd, June 17, 1986: US04596039 (92 worldwide citation)

A method for converting an image from a run representation to a bit map, includes the steps of: storing a plurality of run representations of an image in a buffer; initializing a line of data; converting, by table lookup, each run representation, in said line, to a picture element representation, st ...


2
Karen L Anderson, Ian R Finlay, Joan L Mitchell, Davey S Thornton: Multi-mode data stream generator. International Business Machines Corporation, Mark S Walker, September 20, 1994: US05349348 (65 worldwide citation)

Improved apparatus and method for encoding and decoding information is disclosed herein. The invention uses the same marker segment information to engage an encoder or a decoder. The technique eliminates many of the complexities associated with building parameter lists, and generating various types ...


3
Karen L Anderson, William B Pennebaker, Keith S Pennington: Method for enlarging an image stored in run representation form. International Business Machines Corporation, Thomas P Dowd, December 5, 1989: US04885786 (58 worldwide citation)

The method according to the present invention enlarges a binary digital image by a method comprising the steps of: storing the rows of the image as a plurality of run end representations, in which a row is represented as a sequence of values giving the white and black run ends; enlarging each row of ...


4
Karen L Anderson, Joan L Mitchell: System for creating transposed image data from a run end or run length representation of an image. International Business Machines Corporation, Thomas P Dowd, November 8, 1988: US04783834 (50 worldwide citation)

A system for formatting electronic binary image data, which may be in compressed raster form, into transposed or rotated raster form for storage or output, such as on a printing device, is disclosed wherein the image data is first assembled in a buffer in the form of vectors of run ends representing ...


5
Karen L Anderson, Joan L Mitchell, William B Pennebaker, Gerald Goertzel: Method for converting a bit map of an image to a run length or run end representation. International Business Machines Corporation, George E Clark, Terry J Ilardi, February 24, 1987: US04646356 (37 worldwide citation)

A method for converting an image from a bit map to a run end or run length representation includes the steps of: storing the image as a bit map representation; accessing for each byte in an image by a look-up table a selected routine, corresponding to such byte, from a number of routines for convert ...


6
Joan L Mitchell, Karen L Anderson, Gerald Goertzel: Method for encoding and decoding a digital image. International Business Machines Corporation, Thomas P Dowd, February 16, 1988: US04725815 (36 worldwide citation)

A method for encoding and decoding digital image data, includes the steps of: testing the data for a vertical relationship between adjacent lines of the image; generating directly a reference code word representative of the vertical relationship for each successful test; generating by table lookup a ...


7
Frederick C Mintzer, Karen L Anderson: Image reduction method. International Business Machines Corporation, Thomas P Dowd, December 8, 1987: US04712140 (32 worldwide citation)

A binary image is reduced in size by a method including the steps of: storing the image in bit sequence; dividing the image into transposable blocks; transposing by look up table, for each block having any nonzero data, each group of 6 bits along a first axis to a group of 5 bits; transposing by loo ...


8
Karen L Anderson, Frederick C Mintzer, Gerald Goertzel: Method for enlarging a binary image. December 23, 1986: US04631751 (30 worldwide citation)

A method for enlarging a binary image by an arbitrary factor includes the steps of storing the image in bit sequence; rotating the image in a first direction by ninety degrees; inserting one or more rows of expansion bits along the original horizontal axis of the image to convert i rows of bits to j ...


9
Karen L Anderson, Frederick C Mintzer, Gerald Goertzel, Joan L Mitchell: Method for rotating a binary image. International Business Machines Corporation, George E Clark, Thomas P Dowd, December 2, 1986: US04627020 (28 worldwide citation)

A method for rotating an image by 90 degrees includes the steps of: storing the image in a raster format arranged in r rows by c columns, image information in each row being stored in a number of bytes, each byte having b bits, there being c/b bytes in each row of the raster format; moving a block o ...


10
Frederick C Mintzer, Karen L Anderson, Joan L Mitchell: Method for expansion of a digital image. International Business Machines Corporation, George E Clark, Thomas P Dowd, February 4, 1986: US04569081 (28 worldwide citation)

A method for expanding a binary image includes the steps of: storing the image in bit sequence; inserting for each string of 5 bits along a first axis one or more expansion bits, to convert each said string of 5 bits to a string of 6 bits; assigning a value to each expansion bit generated by the abo ...