Hi,
The openni_camera provides following options in the dynamic configure to change the resolution of the rgb and depth images :
~image_mode (int, default: 2)
- Image output mode for the color/grayscale image Possible values are: SXGA_15Hz (1): 1280x1024@15Hz, VGA_30Hz (2): 640x480@30Hz, VGA_25Hz (3): 640x480@25Hz, QVGA_25Hz (4): 320x240@25Hz, QVGA_30Hz (5): 320x240@30Hz, QVGA_60Hz (6): 320x240@60Hz, QQVGA_25Hz (7): 160x120@25Hz, QQVGA_30Hz (8): 160x120@30Hz, QQVGA_60Hz (9): 160x120@60Hz
~depth_mode (int, default: 2)
- depth output mode Possible values are: SXGA_15Hz (1): 1280x1024@15Hz, VGA_30Hz (2): 640x480@30Hz, VGA_25Hz (3): 640x480@25Hz, QVGA_25Hz (4): 320x240@25Hz, QVGA_30Hz (5): 320x240@30Hz, QVGA_60Hz (6): 320x240@60Hz, QQVGA_25Hz (7): 160x120@25Hz, QQVGA_30Hz (8): 160x120@30Hz, QQVGA_60Hz (9): 160x120@60Hz
Can somebody please indicate how the sub-sampling is done? How is the lower resolution(ex. 160x120@30Hz) is extracted from the original image form the sensor?
Thank you,
Pinaki