Opt Module

The opt module provides global configuration options that affect the behavior of various functions in the cv3 library.

Global configuration options for cv3.

This module provides global configuration options that affect the behavior of various functions in the cv3 library. These options can be modified directly or through provided setter functions.

cv3.opt.RGB

Flag indicating whether to use RGB color format (True) or BGR (False).

Type:: bool

cv3.opt.FPS

Default frames per second for video operations.

Type:: int

cv3.opt.FOURCC

Default codec for video writing.

Type:: str or int

cv3.opt.THICKNESS

Default line thickness for drawing operations.

Type:: int

cv3.opt.COLOR: Default color for drawing operations.

cv3.opt.FONT: Default font for text drawing operations.

cv3.opt.LINE_TYPE: Default line type for drawing operations.

cv3.opt.THRESHOLD_TYPE: Default threshold type for threshold operations.

cv3.opt.SCALE

Default scale factor for drawing operations.

Type:: float

cv3.opt.PT_RADIUS

Default point radius for drawing operations.

Type:: int

cv3.opt.EXPERIMENTAL

Flag to enable experimental features.

Type:: bool

cv3.opt.set_rgb()[source]

Set the color format to RGB.

This function sets the global RGB flag to True, indicating that color values should be interpreted as RGB rather than BGR.

cv3.opt.set_bgr()[source]

Set the color format to BGR.

This function sets the global RGB flag to False, indicating that color values should be interpreted as BGR rather than RGB.

cv3.opt.video(fps=None, fourcc=None)[source]

Set default video parameters.

Parameters:

fps (int, optional) – Default frames per second for video operations.
fourcc (str or int, optional) – Default codec for video writing.

Raises:

AssertionError – If fps is not positive.

cv3.opt.draw(thickness=None, color=None, font=None, pt_radius=None, scale=None, line_type=None)[source]

Set default drawing parameters.

Parameters:

thickness (int, optional) – Default line thickness for drawing operations.
color (optional) – Default color for drawing operations.
font (optional) – Default font for text drawing operations.
pt_radius (int, optional) – Default point radius for drawing operations.
scale (float, optional) – Default scale factor for drawing operations.
line_type (optional) – Default line type for drawing operations.

Raises:

AssertionError – If thickness is not a positive integer.
AssertionError – If color is not of a supported type.

cv3.opt.set_exp(exp=True)[source]

`set_rgb`()	Set the color format to RGB.
`set_bgr`()	Set the color format to BGR.
`video`([fps, fourcc])	Set default video parameters.
`draw`([thickness, color, font, pt_radius, ...])	Set default drawing parameters.

`RGB`	bool(x) -> bool
`FPS`	int([x]) -> integer int(x, base=10) -> integer
`FOURCC`	str(object='') -> str str(bytes_or_buffer[, encoding[, errors]]) -> str
`THICKNESS`	int([x]) -> integer int(x, base=10) -> integer
`COLOR`	int([x]) -> integer int(x, base=10) -> integer
`FONT`	int([x]) -> integer int(x, base=10) -> integer
`SCALE`	int([x]) -> integer int(x, base=10) -> integer
`PT_RADIUS`	int([x]) -> integer int(x, base=10) -> integer
`EXPERIMENTAL`	bool(x) -> bool