LossyScaler Class Reference
Lossy image scaler. More...
#include <fvutils/scalers/lossy.h>
Public Member Functions | |
| LossyScaler () | |
| Constructor. | |
| virtual | ~LossyScaler () |
| Destructor. | |
| virtual void | set_scale_factor (float factor) |
| Set scale factor. | |
| virtual void | set_original_dimensions (unsigned int width, unsigned int height) |
| Set original image dimensions. | |
| virtual void | set_scaled_dimensions (unsigned int width, unsigned int height) |
| Set dimenins of scaled image buffer. | |
| virtual void | set_original_buffer (unsigned char *buffer) |
| Set original image buffer. | |
| virtual void | set_scaled_buffer (unsigned char *buffer) |
| Set scaled image buffer. | |
| virtual void | scale () |
| Scale image. | |
| virtual unsigned int | needed_scaled_width () |
| Minimum needed width of scaled image depending on factor and original image width. | |
| virtual unsigned int | needed_scaled_height () |
| Minimum needed height of scaled image depending on factor and original image height. | |
| virtual float | get_scale_factor () |
| Returns the scale factor. | |
Detailed Description
Lossy image scaler.This scaler just takes the required pixels from the image and throws away the rest. No enhancement of the image is done. This is only suitable for downscaling. The scale factor must be between 0 and 1.
Definition at line 30 of file lossy.h.
Constructor & Destructor Documentation
Member Function Documentation
| float LossyScaler::get_scale_factor | ( | ) | [virtual] |
| unsigned int LossyScaler::needed_scaled_height | ( | ) | [virtual] |
Minimum needed height of scaled image depending on factor and original image height.
- Returns:
- minimum needed height
Implements Scaler.
Definition at line 135 of file lossy.cpp.
Referenced by ColorTrainWidget::draw_segmentation_result(), and scale().
| unsigned int LossyScaler::needed_scaled_width | ( | ) | [virtual] |
Minimum needed width of scaled image depending on factor and original image width.
- Returns:
- minimum needed width
Implements Scaler.
Definition at line 128 of file lossy.cpp.
Referenced by ColorTrainWidget::draw_segmentation_result(), and scale().
| void LossyScaler::scale | ( | ) | [virtual] |
Scale image.
Implements Scaler.
Definition at line 148 of file lossy.cpp.
References needed_scaled_height(), and needed_scaled_width().
Referenced by ColormapViewerWidget::draw(), ColorTrainWidget::draw_segmentation_result(), and ImageWidget::show().
| void LossyScaler::set_original_buffer | ( | unsigned char * | buffer | ) | [virtual] |
Set original image buffer.
- Parameters:
-
buffer YUV 422 planar buffer
Implements Scaler.
Definition at line 114 of file lossy.cpp.
Referenced by ColormapViewerWidget::draw(), ColorTrainWidget::draw_segmentation_result(), and ImageWidget::show().
| void LossyScaler::set_original_dimensions | ( | unsigned int | width, | |
| unsigned int | height | |||
| ) | [virtual] |
Set original image dimensions.
- Parameters:
-
width image width height height
Implements Scaler.
Definition at line 78 of file lossy.cpp.
Referenced by ColormapViewerWidget::draw(), ColorTrainWidget::draw_segmentation_result(), and ImageWidget::show().
| void LossyScaler::set_scale_factor | ( | float | factor | ) | [virtual] |
| void LossyScaler::set_scaled_buffer | ( | unsigned char * | buffer | ) | [virtual] |
Set scaled image buffer.
- Parameters:
-
buffer YUV 422 planar buffer
Implements Scaler.
Definition at line 121 of file lossy.cpp.
Referenced by ColormapViewerWidget::draw(), ColorTrainWidget::draw_segmentation_result(), and ImageWidget::show().
| void LossyScaler::set_scaled_dimensions | ( | unsigned int | width, | |
| unsigned int | height | |||
| ) | [virtual] |
Set dimenins of scaled image buffer.
- Parameters:
-
width image width height height
Implements Scaler.
Definition at line 87 of file lossy.cpp.
Referenced by ColormapViewerWidget::draw(), ColorTrainWidget::draw_segmentation_result(), and ImageWidget::show().
The documentation for this class was generated from the following files:
