The MontiVision Color filter is used to filter out colours in images. Therefore the original image colours are converted into the desired colour format, which can be RGB, HSV, HLS, XYZ, YCrCb or YUV. The colours are converted back into the original colour format after the image is processed. A band pass or band reject filter can be applied to every colour channel. Either the filtered out colour channel is set to the minimum or the maximum value of the colour format or all pixel channels are modified.
Color channel sequences and ranges
| Channel 1 | Range | Channel 2 | Range | Channel 3 | Range | |
| RGB | B | 0.0 - 255.0 | G | 0.0 - 255.0 | R | 0.0 - 255.0 |
| HSV | H | 0.0 - 360.0 | S | 0.0 - 1.0 | V | 0.0 - 1.0 |
| HLS | H | 0.0 - 360.0 | L | 0.0 - 1.0 | S | 0.0 - 1.0 |
| XYZ | X | 0.0 - 255.0 | Y | 0.0 - 255.0 | Z | 0.0 - 255.0 |
| YCrCb | Y | 0.0 - 255.0 | Cr | 0.0 - 255.0 | Cb | 0.0 - 255.0 |
| YUV | Y | 0.0 - 255.0 | U | 0.0 - 255.0 | V | 0.0 - 255.0 |
| File: | color.ax |
| CLSID: | CLSID_MVColor |
Supported Interfaces
Supported COM Events
The filter supports following events through the IMVFilterEvents interface. Look at the filter events page for more information.
| Event |
Value |
Description |
| MV_ALGORITHM_START_EVENT |
0 |
A filter starts processing a video frame or sample. |
| MV_ALGORITHM_END_EVENT |
1 |
A filter finishes processing a video frame or sample. |
MV Color Filter Property Page
Uses the IMVColor configuration interface.
| Color Model | Sets the color model to modify. |
| Modify Channel | Sets the color channel to modify. |
| Slider "From" | Used to adjust the beginning of the filtered area. |
| Slider "To" | Used to adjust the end of the filtered area. |
| Filter type | Sets the filter mode, "band pass" or "band reject". |
| Filter mode | Either only the channel of the modified pixel is modified (Filter out channel) or all channels are modified (Filter out pixel). |
| Filtered value | Sets the modified channels to minimum or maximum of the selected color system. (e.g. 0 or 255 for RGB) |