MV Batch Image File SourceDirectShow Filter

The MontiVision Batch Image File Source filter is used to load batches of still images. It is a powerful tool for both batch and still image to video conversion. See the examples at the bottom of the page. This filter supports two working modes. Either it loads one image file after another as fast as possible or it loads a new image file on every trigger event. To facilitate this, a source folder is specified which includes the image files to be loaded. The image files must all have the same image width, height and bit count per pixel.

This MontiVision DirectShow Filter is used in combination with the MontiVision Smart Control in the ImageStream Sample Application.

The following formats are supported:

Bitmap (*.bmp)
JPEG (*.jpg)
TIFF (*.tif)
TTF (*.ttf)
ICON (*.ico)
JFIF (*.jif)
PCD (*.pcd)
PCX (*.pcx)
PNG (*.png)
PBM (*.pbm)
PGM (*.pgm)
PPM (*.ppm)
RAS (*.ras)
TARGA (*.tga)

File:	BatchFileSource.ax
CLSID:	CLSID_MVBatchFileSource

Supported Interfaces

Supported I/O Pins

I/O Pin	Corresponding method	Discription
Filename [String]	IMVImageCapture::get_FixedFileName	Outputs the file name for the currently processed image file.
Trigger [Boolean]	IMVTrigger::Trigger	Loads the next image of the current image batch (if the filter is in trigger mode). Example: If the trigger mode is MV_TRIGGER_RISING_EDGE, a snapshot is taken after the the Control I/O pin changes its state from FALSE to TRUE.

Attention:
I/O Pins are dominant, meaning they have a higher priority than the corresponding method of the filter's interface!

MV Batch Image File Source Property Page

Uses the IMVBatchFileSource and IMVTrigger configuration interfaces.

MontiVision Image Sequence DirectShow Filter Property Page
Batch image file source filter property page

Open folder	Used to specify the source folder that contains the batch of image files to be loaded.
Sort files	If this check box is selected, the image files are loaded alphabetical.
Trigger	Used to load the next image file if triggering is enabled.
Use trigger	Used to enable or disable the trigger mode. If triggering is enabled, a new image file is loaded for every trigger event. Otherwise a new image is loaded as soon as possible.

Examples:

1. Still image batch to MJPEG compressed video stream conversion:

Still image sequence to video stream conversion DirectShow filter graph
Still image to video stream conversion

2. Batch image processing

All images included in source folder "A" are loaded by the MV Batch Image File Source filter, segmented by the MV Segmentation filter and written to folder "B" by the MV Image Renderer filter. Format conversion is optional. For example the source images can be bitmaps (*.bmp) while the processed images are saved as TIFF (*.tif) images.

Batch image processing DirectShow filter graph
Batch image processing