CONTOUR EMPHASIZING CIRCUIT,申请号CA19972284923-传众专利搜索

CONTOUR EMPHASIZING CIRCUIT

申请公布号：CA2284923(C)

申请号：CA19972284923

申请日期：1997.03.25

申请公布日期：2005.08.02

申请人：

FUJITSU GENERAL LIMITED

发明人：KURITA, MASANORI;SUZUKI, SUSUMU

分类号：H04N5/14;H04N9/64;(IPC1-7):H04N5/208

主分类号：H04N5/14

摘要：A contour emphasizing circuit is provided with a number-of-pixels changing circuit (37) which changes the numbers of pixels of digital R, G, and B signals, a gamma correction circuit (39) which performs gamma correction on the output of the circuit (37), a Y-signal generating circuit (36) which generates luminance signals from the output of the circuit (37), an contour extracting circuit (38) which extracts contour components from the output of the circuit (36), a coefficient multiplying circuit (42) which outputs contour components for R, G, and B by multiplying the extracted contour components by coefficients Kr, Kg, and contour adding circuit (34r), (34g), and (34b) which respectively add the outputs of the circuit (39 and 42). Thus, the contour emphasizing circuit makes contour emphasis on the digital R, G, and B signals.