LabelRecognizerParameter Object
GrayscaleEnhancementModes
Mode Properties
GrayscaleEnhancementModes is a parameter for setting the mode for grayscale image preprocessing algorithms. It consisits of one or more GrayscaleEnhancementMode items and each item has its own arguments. The array index represents the priority of the item. The smaller index is, the higher priority is.
| Value Type | Value Range | Default Value |
|---|---|---|
string array or GrayscaleEnhancementMode array |
“GEM_SKIP” “GEM_AUTO” “GEM_GENERAL” “GEM_GRAY_EQUALIZE” “GEM_GRAY_SMOOTH” “GEM_SHARPEN_SMOOTH” |
[“GEM_GENERAL”, “GEM_SKIP”, “GEM_SKIP”, “GEM_SKIP”, “GEM_SKIP”, “GEM_SKIP”, “GEM_SKIP”, “GEM_SKIP”] |
- See also:
GrayscaleEnhancementModeEnumeration
Mode Arguments
Sensitivity
Sets the sensitivity used for gray equalization.
| Value Type | Value Range | Default Value |
|---|---|---|
| int | [1, 9] | 5 |
Remarks
If you have an image with a low level of contrast, you can set the property to a larger value. A larger value means a higher possibility that gray equalization will be activated. This may cause adverse effect on images with a high level of contrast.
SmoothBlockSizeX
Sets the horizontal block size for the smoothing process.
| Value Type | Value Range | Default Value |
|---|---|---|
| int | [3, 1000] | 3 |
Remarks
Block size refers to the size of a pixel neighborhood used to calculate the threshold for the pixel. An appropriate value can help increase the accuracy of target region localizing.
SmoothBlockSizeY
Sets the vertical block size for the smoothing process.
| Value Type | Value Range | Default Value |
|---|---|---|
| int | [3, 1000] | 3 |
Remarks
Block size refers to the size of a pixel neighborhood used to calculate the threshold for the pixel. An appropriate value can help increase the accuracy of target region localizing.
SharpenBlockSizeX
Sets the horizontal block size for the sharpening process.
| Value Type | Value Range | Default Value |
|---|---|---|
| int | [3, 1000] | 3 |
Remarks
Block size refers to the size of a pixel neighborhood used to calculate the threshold for the pixel. An appropriate value can help increase the accuracy of target region localizing.
SharpenBlockSizeY
Sets the vertical block size for the sharpening process.
| Value Type | Value Range | Default Value |
|---|---|---|
| int | [3, 1000] | 3 |
Remarks
Block size refers to the size of a pixel neighborhood used to calculate the threshold for the pixel. An appropriate value can help increase the accuracy of target region localizing.
LibraryFileName
Sets the file name of the library to load dynamically.
| Value Type | Value Range | Default Value | Valid For |
|---|---|---|---|
| string | A string value representing file name. | ”” | All GrayscaleEnhancementMode items except GEM_SKIP and GEM_AUTO |
Remarks
The library must be in the same place with Dynamsoft Label Recognizer Library.
LibraryParameters
Sets the parameters passed to the library to load dynamically.
| Value Type | Value Range | Default Value | Valid For |
|---|---|---|---|
| string | A string value representing parameters. | ”” | All GrayscaleEnhancementMode items except GEM_SKIP and GEM_AUTO |
Setting Methods
As JSON Parameter
GrayscaleEnhancementModes as a JSON parameter is a JSON Object array. Each JSON Object has several keys for setting the mode and the value of arguments. The array index decides the priority the mode for image preprocessing algorithms.
Default values will be used if there is no manual setting.
| Json Object | Json Parameter Name | Value Type |
|---|---|---|
| LabelRecognizerParameter | GrayscaleEnhancementModes | JSON Object Array |
Json Parameter Example
{
"GrayscaleEnhancementModes": [
{
"Mode": "GEM_GRAY_EQUALIZE",
"Sensitivity": 5
},
{
"Mode": "GEM_SHARPEN_SMOOTH",
"SmoothBlockSizeX": 5,
"SmoothBlockSizeY": 5,
"SharpenBlockSizeX": 5,
"SharpenBlockSizeY": 5
}
]
}
As DLR_RuntimeSettings Member
GrayscaleEnhancementModes is a GrayscaleEnhancementMode array defines in furtherModes which is a struct member of DLR_RuntimeSettings. It is used for setting the modes and the priority for image preprocessing algorithms. Default value will be used if there is no manual setting.
| Struct | Struct Member Name | Value Type |
|---|---|---|
DLR_RuntimeSettings->furtherModes |
grayscaleEnhancementModes |
GrayscaleEnhancementMode[8] |
See Also
Yes
No