NTSC and PAL are two different color encoding systems, and they can affect the visual quality of pictures/videos watched on analog TVs and HDTVs. NTSC can deliver a frame rate of 30fps with an aspect ratio of 720x480. However, PAL can deliver a frame rate of 25 fps with an aspect ratio of 720x576. The PAL system can provide automated color correction as compared to NTSC that provides manual color correction. The NTSC is a popular standard in countries like Japan and the U.S. However, PAL is mostly used in countries such as Australia, the UK, and Sweden.
NTSC and PAL Color Encoding Difference
The PAL standard can manage the colors automatically, and it uses phase alternation of the color signal for removing the hue errors. Moreover, it can also remove the chrominance phase errors. NTSC standard requires a manual tint control for the correction of colors. In case of colors are off-hue, the NTSC systems will make them more noticeable, and a manual adjustment is needed for color correction.
Hanover bars are another technical feature of alternating color information. It can result in grainy pictures if there are several phase errors. It can also occur in PAL systems, specifically if decoded circuits are not aligned properly or decoders are early generation.
Picture Quality in NTSC vs. PAL
PAL lines can go out at 50 fields/second because the power supply standard of Europe is 50 Hz, i.e., 25 alternating lines. Furthermore, PAL televisions can deliver 25 fps which causes to show faster motion. PAL may offer fewer frames per second, but it also provides more lines than NTSC. The PAL television offers 625 lines of resolution while NTSC can provide 525. However, more lines ensure more visual information, which ensures better resolution and picture quality.
Conversion from NTSC to PAL
If a PAL video is converted into the NTSC tape, it needs 5 extra frames per second, or the visual can be jerky. However, the opposite can be true while converting NTSC move to PAL. It is necessary to remove five frames per second, or the video can be slower.