CameraImageProcessing QML Type

An interface for camera capture related settings. 更多...

import 语句：

import QtMultimedia 5.12

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特性

brightness : qreal
colorFilter : enumeration
contrast : qreal
denoisingLevel : qreal
isAvailable : bool
manualWhiteBalance : qreal
saturation : qreal
sharpeningLevel : qreal
supportedColorFilters : list<ColorFilter>
supportedWhiteBalanceModes : list<WhiteBalanceMode>
whiteBalanceMode : enumeration

详细描述

CameraImageProcessing provides control over post-processing done by the camera middleware, including white balance adjustments, contrast, saturation, sharpening, and denoising

It should not be constructed separately, instead the imageProcessing property of a Camera should be used.

Camera {
    id: camera
    imageProcessing {
        whiteBalanceMode: Camera.WhiteBalanceTungsten
        contrast: 0.66
        saturation: -0.5
    }
}

特性文档编制

brightness : qreal

Image brightness adjustment. Valid brightness adjustment values range between -1.0 and 1.0, with a default of 0.

该特性在 Qt 5.7 引入。

colorFilter : enumeration

This property holds which color filter if any will be applied to image data captured by the camera.

It can be one of:

CameraImageProcessing .ColorFilterNone	No filter is applied to images.
CameraImageProcessing .ColorFilterGrayscale	A grayscale filter.
CameraImageProcessing .ColorFilterNegative	A negative filter.
CameraImageProcessing .ColorFilterSolarize	A solarize filter.
CameraImageProcessing .ColorFilterSepia	A sepia filter.
CameraImageProcessing .ColorFilterPosterize	A posterize filter.
CameraImageProcessing .ColorFilterWhiteboard	A whiteboard filter.
CameraImageProcessing .ColorFilterBlackboard	A blackboard filter.
CameraImageProcessing .ColorFilterAqua	An aqua filter.
CameraImageProcessing .ColorFilterVendor	The base value for vendor defined filters.

该特性在 Qt 5.5 引入。

contrast : qreal

Image contrast adjustment. Valid contrast adjustment values range between -1.0 and 1.0, with a default of 0.

denoisingLevel : qreal

Adjustment of denoising applied to image.

Valid denoising level values range between -1.0 for for denoising disabled, 0 for default denoising level and 1.0 for maximum denoising applied.

isAvailable : bool

This property holds if image processing related settings are supported by this camera.

该特性在 Qt 5.11 引入。

manualWhiteBalance : qreal

The color temperature used when in manual white balance mode (WhiteBalanceManual). The units are Kelvin.

另请参阅 whiteBalanceMode .

saturation : qreal

Image saturation adjustment. Valid saturation adjustment values range between -1.0 and 1.0, the default is 0.

sharpeningLevel : qreal

Adjustment of sharpening level applied to image.

Valid sharpening level values range between -1.0 for for sharpening disabled, 0 for default sharpening level and 1.0 for maximum sharpening applied.

supportedColorFilters : list < ColorFilter >

This property holds the supported color filters by this camera.

该特性在 Qt 5.11 引入。

supportedWhiteBalanceModes : list < WhiteBalanceMode >

This property holds the supported white balance modes by this camera.

该特性在 Qt 5.11 引入。

whiteBalanceMode : enumeration

值	描述
WhiteBalanceManual	Manual white balance. In this mode the manual white balance property value is used.
WhiteBalanceAuto	Auto white balance mode.
WhiteBalanceSunlight	Sunlight white balance mode.
WhiteBalanceCloudy	Cloudy white balance mode.
WhiteBalanceShade	Shade white balance mode.
WhiteBalanceTungsten	Tungsten white balance mode.
WhiteBalanceFluorescent	Fluorescent white balance mode.
WhiteBalanceFlash	Flash white balance mode.
WhiteBalanceSunset	Sunset white balance mode.
WhiteBalanceVendor	Vendor defined white balance mode.

另请参阅 manualWhiteBalance .