FrameDecodingParameters
Note:
- This class is removed in 9.0 version. Please use the video methods for video barcode scanning if you are using the latest version.
Defines a struct to configure the frame decoding Parameters.
class com.dynamsoft.dbr.FrameDecodingParameters
| Attribute | Type | Descriptions |
|---|---|---|
maxQueueLength |
int | The maximum number of frames waiting for decoding. |
maxResultQueueLength |
int | The maximum number of frames waiting results (text result/localization result) will be kept for further reference. |
width |
int | The width of the frame image in pixels. |
height |
int | The height of the frame image in pixels. |
stride |
int | The stride (or scan width) of the frame image. |
imagePixelFormat |
int | The image pixel format used in the image byte array. |
region |
RegionDefinition |
The region definition of the frame to calculate the internal indicator. |
threshold |
float | The threshold used for filtering frames. |
fps |
int | The frequency of calling appendFrame per second. |
autoFilter |
int | Sets whether to filter frames automatically. |
clarityCalculationMethod |
int | Sets the method used for calculating the clarity of the frames. |
clarityFilterMode |
int | Sets the mode used for filtering frames by calculated clarity. |
maxQueueLength
The maximum number of frames waiting for decoding.
int maxQueueLength
Value Range
[0,0x7fffffff]
Default Value
3
maxResultQueueLength
The maximum number of frames waiting results (text result/localization result) will be kept for further reference.
int maxResultQueueLength
Value Range
[0,0x7fffffff]
Default Value
10
width
The width of the frame image in pixels.
int width
Value Range
[0,0x7fffffff]
Default Value
0
height
The height of the frame image in pixels.
int height
Value Range
[0,0x7fffffff]
Default Value
0
stride
The stride (or scan width) of the frame image.
int stride
Value Range
[0,0x7fffffff]
Default Value
0
imagePixelFormat
The image pixel format used in the image byte array.
int imagePixelFormat
Value Range
A value of EnumImagePixelFormat Enumeration items.
Default Value
IPF_GRAYSCALED
See Also
EnumImagePixelFormat
region
The region definition of the frame to calculate the internal indicator.
RegionDefinition region
Default Value
{ regionLeft = 0, regionRight = 100, regionTop = 0, regionBottom = 100, regionMeasuredByPercentage = 1 }
See Also
RegionDefinition
threshold
The threshold used for filtering frames.
float threshold
Value Range
[0, 1]
Default Value
0.1
Remarks
The SDK will calculate an inner indicator for each frame from appendFrame, if the change rate of the indicators between the current frame and the history frames is larger than the given threshold, the current frame will not be added to the inner frame queue waiting for decoding.
fps
The frequency of calling appendFrame per second.
int fps
Value Range
[0,0x7fffffff]
Default Value
0
Remarks
0 means the frequency will be calculated automatically by the SDK.
autoFilter
Sets whether to filter frames automatically.
int autoFilter
Value Range
[0,1]
Default Value
1
Remarks
0: Diable filtering frames automatically. 1: Enable filtering frames automatically.
clarityCalculationMethod
Sets the method used for calculating the clarity of the frames.
int clarityCalculationMethod
Value Range
Any one of the EnumClarityCalculationMethod Enumeration items.
Default Value
ECCM_CONTRAST
See Also
EnumClarityCalculationMethod
clarityFilterMode
Sets the mode used for filtering frames by calculated clarity.
int clarityFilterMode
Value Range
Any one of the EnumClarityFilterMode Enumeration items.
Default Value
CFM_GENERAL
See Also
EnumClarityFilterMode
Yes
No