Back to results
US 9,430,959 B2Granted
Character region pixel identification device and method thereof
AssigneeEIZO Corporation
InventorsHaifeng Chen, Masashi Nakao
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeEIZO Corporation
InventorsHaifeng Chen, Masashi Nakao
Estimating the term…
An anti-aliasing font character on a monitor is prevented from being erroneously judged as an image region. The pixel of interest and four pixels each preceding and following the pixel of interest (a total of nine pixels) are extracted (S3). The largest of the values of the sub-pixels of each of the nine pixels extracted is determined as the representative value of each pixel (step S5). The nine representative values are represented as a histogram and referred to as H0, H1, H2, and the like in the descending order of the frequency in the distribution (S7). Whether Formula (1) below is satisfied is determined (S9). H0+H1+H2<TH . . . (1) If Formula (1) is satisfied, the pixel of interest is judged as a non-character-region pixel; if not, the pixel of interest is judged as a character-region pixel (S11, S13).
A method for judging whether a unit pixel is included in a character region on a display screen including a plurality of unit pixels, each unit pixel having three or more primary color sub-pixels arranged therein, the method comprising:
A method for judging whether a unit pixel is included in a character region on a display screen including a plurality of unit pixels, each unit pixel having three or more primary color sub-pixels arranged therein, the method comprising:
An apparatus for judging whether a unit pixel is included in a character region on a display screen including a plurality of unit pixels, each unit pixel having three or more primary color sub-pixels arranged therein, the apparatus comprising a processor and a memory, the processor being configured to:
An apparatus for judging whether a unit pixel is included in a character region on a display screen including a plurality of unit pixels, each unit pixel having three or more primary color sub-pixels arranged therein, the apparatus comprising a processor and a memory, the processor being configured to:
A non-transitory computer readable medium storing a program for causing a computer to perform a character-region pixel judgment process of judging whether a unit pixel is included in a character region on a display screen including a plurality of unit pixels, each unit pixel having three or more primary color sub-pixels arranged therein, the program causing the computer to:
A non-transitory computer readable medium storing a program for causing a computer to perform a character-region pixel judgment process of judging whether a unit pixel is included in a character region on a display screen including a plurality of unit pixels, each unit pixel having three or more primary color sub-pixels arranged therein, the program causing the computer to:
Dependencies are inferred from the claim text.