Video Quality Tests Page 5

Still images and MPEG-2/MPEG-1 Format

Still images are used to investigate the behaviour of the converter with a wider range of colours. Clarity, distortion and brightness is also investigated. Still images are compared against the images provided on the Pioneer disc, without any kind of conversion. We tried to use dark images as well as light images.

On this page, MPEG-2 and MPEG-1 profiles were used (DVD and VCD). The same frame was extracted for every occasion, and the image was zoomed by 400%. Clicking on the images will reveal full sized high resolution images for better comparison.

DVD unconverted image
DVD High Quality Conversion
DVD Good Quality Conversion
DVD Standard Play Conversion
DVD Long Play Conversion
DVD Extended Play Conversion
VCD MPEG-1 Conversion

This is a normal bright image. We were disappointed to see that not all colours are maintained exactly as in the original image. Video quality was reduced as expected. DVD high quality profiles produce the best results, almost the same as the DVD source we used.

DVD unconverted image
DVD High Quality Conversion
DVD Good Quality Conversion
DVD Standard Play Conversion
DVD Long Play Conversion
DVD Extended Play Conversion
VCD MPEG-1 Conversion

This is a much brighter image, but brightness is not maintained through the produced, converted files. Of course, light enchanchments that can be applied by the software can correct minor problems with brightness. We expected to see better quality from the ConvertX device.