YIQ

(communication)

The method of representing colors in color television systems, where Y represents the luminosity, which is also the black-and-white signal, I represents red minus the luminosity, and Q represents blue minus the luminosity.

YIQ

The original color space used for encoding NTSC video in 1953, which was very similar to YUV. Only a small number of TV sets that decoded YIQ were ever manufactured, and it became obsolete. All NTSC encoding today is YUV. See YUV.

Copyright © 1981-2025 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.

Mentioned in

References in periodicals archive

luminance brightness (monochrome) of an image (e.g., Y or YUV or YIQ signal)

Standards and the emergence of digital multimedia systems

Transform color image CFVR from RGB color space to YIQ and estimation YFVR component and IQFVRcomponents.

Aerial image enhancement using modified fast visibility restoration based on sigmoid function

R G B X Y Z 256 levels - - - - - Otsu (full image) + + + + + Kapur (full image) + + + - - Otsu (N=20) - + - - + Kapur (N=20) + - - - - Otsu (N=50) + + + - + Kapur (N=50) - + - - - Otsu (N=100) + + + - + Kapur (N=100) - + - - - Otsu (N=200) + + + + + + Kapur (N=200) + + - - - Otsu (N=500) + + + + + Kapur (N=500) + + + - - Otsu (N=1000) + + + + + Kapur (N=1000) + + + - - LAB YIQ YCbCr ASH 256 levels - - - Otsu (full image) + + + + Kapur (full image) - + + + Otsu (N=20) + - - Kapur (N=20) - - - + Otsu (N=50) + + + + Kapur (N=50) - - - + Otsu (N=100) + + + + Kapur (N=100) + + - Otsu (N=200) + + + + Kapur (N=200) + + + + Otsu (N=500) + + + + Kapur (N=500) + + + + Otsu (N=1000) + + + + Kapur (N=1000) - + + + TABLE II.

Fast statistical image binarization of colour images for the recognition of the QR codes

The size and shape of these ellipses vary in the color models used in image processing, including the HSI and YIQ models.

Online burning material pile detection on color clustering and quaternion based edge detection in boiler

Assessment scores (MOS with confidence interval) for each video scene in all three tests: SS-1 (YPbPr), SS-2 (YCbCr) and SS-3 (YIQ) are presented in Fig.

Impact of video content and technical specifications on subjective quality assessment/Vaizdo turinio ir techniniu specifikaciju poveikis subjektyviam kokybes vertinimui

Hence the conventional color spaces such as YIQ, YCbCr, L*a*b*, and HSV are more effective than original RGB color space at face recognition.

Color face recognition based on Steerable Pyramid Transform and extreme learning machines

Nonetheless, most of the studies so far used the green (G) component of RGB color space for blood vessel recognition with some using luminance (Y) from YIQ color space [6].

Optimal combinations of color space components for detection of blood vessels in eye fundus images/Optimalios spalvu erdves komponentu kombinacijos kraujagyslems aptikti akies dugno vaizduose

There are many color spaces, some are designed for computer graphics, such as YIQ, HSV, HIS and GLHS (generalized LHS) (AO Linmi, et al., 2001).

Morphological based skin segmentation using computer graphics color model

Mali, "Comparative performance analysis of DWT-SVD based color image watermarking technique in YUV, RGB and YIQ color spaces," International Journal of Computer Theory and Engineering, vol.

Video multiple watermarking technique based on image interlacing using DWT

Therefore, majority of color spaces (YCbCr, HSV, YUV, HSL, YIQ etc.) have been evolved or used for the identification of skin or non-skin pixels.

Human face localization using normalized RGB color space

For example, in [10], Zhao and Xi introduced mean shift as a smooth filter for processing YIQ color images and compared it with Wiener filter.

Adaptive bacteria colony picking in unstructured environments using intensity histogram and unascertained LS-SVM classifier