Struct CompositionChannelInfoInterop

• Defined in File composition_channel_info_interop.h

Struct Documentation

struct CompositionChannelInfoInterop

This structure gathers all information about a channel for the purpose of multi-channel-composition.

Public Members

float weight

The weight of the channel in the composition.

std::uint8_t enable_tinting

True if tinting is enabled for this channel (in which case the tinting member is to be examined), false if no tinting is to be applied (the tinting member is then not used).

std::uint8_t tinting_color_r

The tinting color (only examined if enableTinting is true). This is the red-component.

std::uint8_t tinting_color_g

The tinting color (only examined if enableTinting is true). This is the green-component.

std::uint8_t tinting_color_b

The tinting color (only examined if enableTinting is true). This is the blue-component.

float black_point

The black point - it is a float between 0 and 1, where 0 corresponds to the lowest pixel value (of the pixel-type for the channel) and 1 to the highest pixel value (of the pixel-type of this channel). All pixel values below the black point are mapped to 0.

float white_point

The white point - it is a float between 0 and 1, where 0 corresponds to the lowest pixel value (of the pixel-type for the channel) and 1 to the highest pixel value (of the pixel-type of this channel). All pixel value above the white pointer are mapped to the highest pixel value.

int look_up_table_element_count

Number of elements in the look-up table. If 0, then the look-up table is not used. If this channelInfo applies to a Gray8/Bgr24-channel, then the size of the look-up table must be 256. In case of a Gray16/Bgr48-channel, the size must be 65536.

Remark

If a look-up table is provided, then blackPoint and whitePoint are not used anymore .

const std::uint8_t *ptr_look_up_table

The pointer to the look-up table. If the property ‘look_up_table_element_count’ is <> 0, then this pointer must be valid.