QCameraImageProcessingControl Class
The QCameraImageProcessingControl class provides an abstract class for controlling image processing parameters, like white balance, contrast, saturation, sharpening and denoising. More...
| Header: | #include <QCameraImageProcessingControl> |
| qmake: | QT += multimedia |
| Inherits: | QMediaControl |
This class is obsolete. It is provided to keep old source code working. We strongly advise against using it in new code.
Public Types
| enum | ProcessingParameter { WhiteBalancePreset, ColorTemperature, Contrast, Saturation, Brightness, …, ExtendedParameter } |
Macros
Detailed Description
The interface name of QCameraImageProcessingControl is org.qt-project.qt.cameraimageprocessingcontrol/5.0 as defined in QCameraImageProcessingControl_iid.
Camera service may choose the parameters of image processing pipeline depending on sensor properties camera settings and capture parameters.
This control allows to modify some parameters of image processing pipeline to achieve desired results.
Parameters with the "Adjustment" suffix, like ContrastAdjustment, SaturationAdjustment etc allows to adjust the parameter values, selected by camera engine, while parameters like Contrast and Saturation overwrites them.
For example setting the SharpeningAdjustment parameter to -0.1 slightly reduces the amount of sharpening applied, while settings the Sharpening parameter to 0 disables sharpening at all.
See also QMediaService::requestControl() and QCamera.
Member Type Documentation
enum QCameraImageProcessingControl::ProcessingParameter
| Constant | Value | Description |
|---|---|---|
QCameraImageProcessingControl::WhiteBalancePreset | 0 | The white balance preset. |
QCameraImageProcessingControl::ColorTemperature | 1 | Color temperature in K. This value is used when the manual white balance mode is selected. |
QCameraImageProcessingControl::Contrast | 2 | Image contrast. |
QCameraImageProcessingControl::Saturation | 3 | Image saturation. |
QCameraImageProcessingControl::Brightness | 4 | Image brightness. |
QCameraImageProcessingControl::Sharpening | 5 | Amount of sharpening applied. |
QCameraImageProcessingControl::Denoising | 6 | Amount of denoising applied. |
QCameraImageProcessingControl::ContrastAdjustment | 7 | Image contrast adjustment. |
QCameraImageProcessingControl::SaturationAdjustment | 8 | Image saturation adjustment. |
QCameraImageProcessingControl::BrightnessAdjustment | 9 | Image brightness adjustment. |
QCameraImageProcessingControl::SharpeningAdjustment | 10 | Adjustment of sharpening applied. |
QCameraImageProcessingControl::DenoisingAdjustment | 11 | Adjustment of denoising applied. |
QCameraImageProcessingControl::ColorFilter | 12 | Image filter applied. Since 5.5 |
QCameraImageProcessingControl::ExtendedParameter | 1000 | The base value for platform specific extended parameters. |
Macro Documentation
QCameraImageProcessingControl_iid
org.qt-project.qt.cameraimageprocessingcontrol/5.0
Defines the interface name of the QCameraImageProcessingControl class.