img_adjust_hsv_in_yiq {tfaddons}

Adjust hsv in yiq

Description

Adjust hue, saturation, value of an RGB image in YIQ color space.

Usage

img_adjust_hsv_in_yiq(
  image,
  delta_hue = 0,
  scale_saturation = 1,
  scale_value = 1,
  name = NULL
)

Arguments

image

RGB image or images. Size of the last dimension must be 3.

delta_hue

float, the hue rotation amount, in radians.

scale_saturation

float, factor to multiply the saturation by.

scale_value

float, factor to multiply the value by.

name

A name for this operation (optional).

Details

This is a convenience method that converts an RGB image to float representation, converts it to YIQ, rotates the color around the Y channel by delta_hue in radians, scales the chrominance channels (I, Q) by scale_saturation, scales all channels (Y, I, Q) by scale_value, converts back to RGB, and then back to the original data type. 'image' is an RGB image. The image hue is adjusted by converting the image to YIQ, rotating around the luminance channel (Y) by 'delta_hue' in radians, multiplying the chrominance channels (I, Q) by 'scale_saturation', and multiplying all channels (Y, I, Q) by 'scale_value'. The image is then converted back to RGB.

Value

Adjusted image(s), same shape and dtype as 'image'.