DataMatrixCellFilterMode
Specifies the mode the function uses to determine the pixel value for each cell.
Elements
| Name | Value | Description |
|---|---|---|
| IMAQ_AUTO_DETECT_CELL_FILTER_MODE | -2 | The function will try all filter modes and uses the one that decodes the Data Matrix barcode within the fewest iterations and utilizing the least amount of error correction. |
| IMAQ_AVERAGE_FILTER | 0 | The function sets the pixel value for the cell to the average of the sampled pixels. |
| IMAQ_MEDIAN_FILTER | 1 | The function sets the pixel value for the cell to the median of the sampled pixels. |
| IMAQ_CENTRAL_AVERAGE_FILTER | 2 | The function sets the pixel value for the cell to the average of the pixels in the center of the cell sample. |
| IMAQ_HIGH_AVERAGE_FILTER | 3 | The function sets the pixel value for the cell to the average value of the half of the sampled pixels with the highest pixel values. |
| IMAQ_LOW_AVERAGE_FILTER | 4 | The function sets the pixel value for the cell to the average value of the half of the sampled pixels with the lowest pixel values. |
| IMAQ_VERY_HIGH_AVERAGE_FILTER | 5 | The function sets the pixel value for the cell to the average value of the ninth of the sampled pixels with the highest pixel values. |
| IMAQ_VERY_LOW_AVERAGE_FILTER | 6 | The function sets the pixel value for the cell to the average value of the ninth of the sampled pixels with the lowest pixel values. |
| IMAQ_ALL_CELL_FILTERS | 8 | The function tries each filter mode, starting with IMAQ_AVERAGE_FILTER and ending with IMAQ_VERY_LOW_AVERAGE_FILTER, stopping once a filter mode decodes correctly. |
| IMAQ_DATA_MATRIX_CELL_FILTER_MODE_SIZE_GUARD | 0xFFFFFFFF | Reserved |