# SimplifiedDocumentNormalizerSettings
The `SimplifiedDocumentNormalizerSettings` class contains settings for document normalization. It is a sub-parameter of `SimplifiedCaptureVisionSettings`
```csharp
public class SimplifiedDocumentNormalizerSettings
```
## Attributes Summary
| Attribute | Type |
| --------- | ---- |
| [`grayscaleTransformationModes`](#grayscaletransformationmodes) | *EnumGrayscaleTransformationMode[]* |
| [`grayscaleEnhancementModes`](#grayscaleenhancementmodes) | *EnumGrayscaleEnhancementMode[]* |
| [`colourMode`](#colourmode) | *EnumImageColourMode* |
| [`pageSize`](#pagesize) | *int[]* |
| [`brightness`](#brightness) | *int* |
| [`contrast`](#contrast) | *int* |
| [`maxThreadsInOneTask`](#maxthreadsinonetask) | *int* |
| [`scaleDownThreshold`](#scaledownthreshold) | *int* |
| [`minQuadrilateralAreaRatio`](#minquadrilateralarearatio) | *int* |
| [`expectedDocumentsCount`](#expecteddocumentscount) | *int* |
### grayscaleTransformationModes
Sets the grayscale transformation modes using an [`EnumGrayscaleTransformationMode`](https://www.dynamsoft.com/capture-vision/docs/server/programming/dotnet/api-reference/core/enum-grayscale-transformation-mode.md) array with 8 elements. View the reference page of `GrayscaleTransformationModes` for more detail about grayscale transformation modes.
```csharp
EnumGrayscaleTransformationMode[] grayscaleTransformationModes;
```
### grayscaleEnhancementModes
Sets the grayscale enhancement modes using an [`EnumGrayscaleEnhancementMode`](https://www.dynamsoft.com/capture-vision/docs/server/programming/dotnet/api-reference/core/enum-grayscale-enhancement-mode.md) array with 8 elements. View the reference page of `GrayscaleEnhancementModes` for more detail about grayscale enhancement modes.
```csharp
EnumGrayscaleEnhancementMode[] grayscaleEnhancementModes;
```
### colourMode
Sets the output image colour mode using an enumeration value from [`EnumImageColourMode`](https://www.dynamsoft.com/document-normalizer/docs/server/programming/dotnet/api-reference/enum-image-colour-mode.md).
```csharp
EnumImageColourMode colourMode;
```
**Default value**
"ICM_COLOUR"
### pageSize
Sets the page size (width by height in pixels) of the normalized image.
```csharp
int[] pageSize;
```
### brightness
Sets the brightness of the normalized image.
```csharp
int brightness;
```
**Value Range**
[-100,100]
**Default value**
0
### contrast
Sets the contrast of the normalized image.
```csharp
int contrastl
```
**Value Range**
[-100,100]
**Default value**
0
### maxThreadsInOneTask
Sets the maximum available threads count in one document normalization task.
```csharp
int maxThreadsInOneTask;
```
**Value Range**
[1, 256]
**Default value**
4
### scaleDownThreshold
Sets the threshold for the image shrinking.
```csharp
int scaleDownThreshold;
```
**Value Range**
[512, 0x7fffffff]
**Default Value**
2300
**Remarks**
If the shorter edge size is larger than the given threshold value, the library will calculate the required height and width of the barcode image and shrink the image to that size before detection. Otherwise, the library will perform document detection on the original image.
### minQuadrilateralAreaRatio
Sets the minimum ratio between the target document area and the total image area. Only those exceeding this value will be output (measured in percentages).
```csharp
int minQuadrilateralAreaRatio;
```
**Value Range**
[0, 100]
**Default value**
0
### expectedDocumentsCount
Sets the number of documents expected to be detected.
```csharp
int expectedDocumentsCount;
```
**Value Range**
[0, 0x7fffffff]
**Default value**
1