JPS6142080A - Color and border discrimination device by picture - Google Patents

Abstract

PURPOSE:To easily discriminate hue, chromaticity and a border of a color by using an subcarrier wave of a television system and replacing difference of a color to a phase difference. CONSTITUTION:A color video signal (a) enters from a terminal 1 to a synchronizing signal generator 2 with a genlock, a waveform port is made by a burst lock oscillator 3, after delay is executed at a delay circuit 4, the gain is adjusted by a adjuster 5. An input signal (a) is added through an amplifier 6 and a buffer 7 by an adder 8, and after adding, the signal is sent from a synchronizing additional output amplifier 9 through a terminal 10 to a monitor. While the monitor is watched for measurement, the adjuster 5 is adjusted so that in a waveform (c) a subcarrier wave 17 goes to minimum. The output of the adder 8 is sent to a flip-flop and a border pulse of a waveform (d) is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a computer-powered device used as an input device for a product discrimination device.

Conventionally, the only method for color discrimination was to use expensive spectrum analysis IIa. The x color boundary is also analyzed by brightness, and it is determined by t-9.
PIM of hues with the same brightness was not 8 easy. This invention uses subcarriers of the television digital system to replace color gradients with phase gradients, changing hue, chromaticity, and color boundaries.
There are two types of discrimination.

The color video signal (A) is connected to the ■ terminal from the ■ Genro 7 connector.
Enter the synchronization signal generator and create the waveform (B) with the burst, lock, and oscillator signals (■). ■■ is the delay circuit. The delay amount and gain of (2) are manipulated by (2). −Universal power signal (a)
is the addition of ω via the amplifier ■ and the buffer ■ xI! Nine. , : 9 from ■ synchronous addition output amplifier 0
After being acquainted, he is treated as a monitor. Titration is carried out while watching this monitor in (c) so that O is at a minimum.
Next, the output of ■ is sent to the 7th lip of O and the 7th flop (d).
Obtain the boundary pulse of .

Product inspection as explained above! Is image processing can be easily performed, and even unskilled users can use it without using an expensive locator.

The effect is great.

[Brief explanation of drawings]

The figure shows the method of this invention. 5 is an X continuation. Figure 2 shows the shape of each part. ■=Input control■=With genlock, synchronous signal generation ability■=Perst, O-t, oscillation -〇=Phase delay route■=
Phase switching annihilator, etc. = video amplifier = puffer amplifier = adder = l
IIIM additional output amplifier 0 = monitor output terminal, O;
7 rip, flop (with synchronous reset) O = Output signal for control (A): Input waveform 0 = Horizontal synchronization signal 0 = Burst 0 = J
N! Vice color W! EI! I, ItO = unique subcarrier (
b) = Delayed waveform with phase shift scale from burst 0 = Delayed subcarrier, it (8) = Subcarrier of addition longing 0 = XllI! Waveform 0 = 0 + Q waveform (d) = color boundary folding is one pulse, waveform OJ! When the color changes, one pulse in the ■ section.

Claims (1)

[Claims] The chrominance signal is selected using a calibrated delay network (5) and summed with the input image (A), resulting in the (12) of the input color signal (A).
) or (13) in (5), detect (17) of the hue (C) at that time, add (18) to (11), and output a color boundary discrimination pulse in (19). Characteristic discrimination device.