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US 5,327,256 AGranted
Resolution conversion method of pictorial image processing system
AssigneeSamsung Electronics Co., Ltd.
InventorsKu-Su Kang, Seo-Kyu Kim
Life of this patent
Estimating the term…
Abstract
A resolution conversion method for securing a high quality of pictorial image by converting an pictorial image data of resolution of 200 dpi to an pictorial image data of resolution of 300 dpi so as to print without any deterioration or distortion of the quality of a picture and to prevent for a printer or a displaying device.
Claims20
A resolution conversion method for a pictorial image processing system, comprising the steps of;
- storing pictorial image data received as an unit of line in an odd and an even line of a two-line buffer;
- sequentially covering said pictorial image data stored in said two-line buffer with a mask so as to prevent overlapping of one portion of said pictorial image data from another;
- reading said pictorial image data covered by said mask to perform a resolution conversion of said pictorial image data and storing the converted pictorial image data in a three-line buffer;
- and
- recording said converted pictorial image data stored in said three-line buffer on a memory when said resolution conversion for two lines of said pictorial image data stored in said two-line buffer is finished, and repeating all of said steps until all lines of said pictorial image data are recorded completely.
2 more elements
A resolution conversion method for a pictorial image processing system, comprising the steps of;
- receiving pictorial image data having a first resolution factor on a line-by-line basis;
- storing said pictorial image data in each line unit consisting of an odd line and an even line in a two-line buffer;
- sequentially covering different portions of said pictorial image data stored in each line unit with a mask of a predetermined size;
- performing a resolution conversion of said pictorial image data by reading the portion of said pictorial image data covered by said mask to convert said portion of said pictorial image data of said first resolution factor into converted pictorial image data having a second resolution factor greater than said first resolution factor, and storing the converted pictorial image data in a three-line buffer;
- and
- recording the converted pictorial image data into a memory when the resolution conversion of said pictorial image data in each line unit is completed.
3 more elements
A resolution conversion apparatus of a pictorial image processing system, comprising;
- means for receiving pictorial image data having a first resolution factor on a line-by-line basis from one of a scanner and a modem;
- processor means having a two-line buffer, a three-line buffer and a memory, for storing each line unit consisting of an odd line and an even line of said pictorial image data in said two-line buffer, sequentially covering different portions of said pictorial image data stored as said line unit with a mask of a predetermined size, performing a resolution conversion of said pictorial image data by reading each portion of said pictorial image data covered by said mask to convert said pictorial image data of said first resolution factor into converted pictorial image data having a second resolution factor greater than said first resolution factor, storing the converted pictorial image data into said three-line buffer, and recording the converted pictorial image data into a memory when the resolution conversion of said pictorial image data as said line unit are completed;
- means for enabling transmission of said converted pictorial image data having said second resolution factor to a printer for performing a printing operation.
An image resolution conversion apparatus, comprising;
- means for receiving pictorial image data having a first resolution factor on a line-by-line basis;
- first buffer means for storing said pictorial image data in sequence of a two-line unit;
- means for sequentially masking different portions of the two-line unit of said pictorial image data stored in said first buffer means, and performing a resolution conversion of said pictorial image data within each masking portion to produce converted pictorial image data having a second resolution factor greater than said first resolution factor;
- and
- second buffer means for storing the converted pictorial image data in sequence of a three-line unit.
2 more elements
Dependencies are inferred from the claim text.