Hi, Recently I observed some artifacts in the above mentioned programs.
The first one is concerned with recording a video stream from a Hi8 source using a BT878 based card (that is, software encoding). From time to time (say in an interval of a few minutes), there appear horizontal lines in single frames. The pictures below show a sample. Note that the jpg image is interlaced. http://www.nada.kth.se/~hanke/files/pert.jpg http://www.nada.kth.se/~hanke/files/pert.ppm The perturbations are clearly seen near the knees. Did anybody experience similar defects? The other artifact is connected with using matteblend which amounts to reencoding the footage. I am using always a quality factor of 80. Nevertheless, The pictures contain broad horizontal stripes which were not present in the original. A sample is given below: http://www.nada.kth.se/~hanke/files/block.jpg http://www.nada.kth.se/~hanke/files/block.ppm The effect is clearly seen in the backstage and near the walls on the left side. What can I do? I am using the mjpegtools 1.6.2 on a SuSE Linux 9.0 box. Thank you. Michael ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id70&alloc_id638&op=click _______________________________________________ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
