Below is a link to a video I made that shows a trick I stumbled onto (that everyone else probably knows already - but, hey, it was new to me!). I recently was fortunate to get (okay, my wife got, but I get to use) a Canon 5D Mark III. This shoots really fine video (in the hands of someone who knows how to shoot fine video), but it really benefits from applying the Sharpen fx in post.
Problem is, whenever there was a red or orange object in the shot, the preview in Vegas looked awful, with artifacts at the border of the red and any other color. Sharpening (even set at zero) worsened the artifact so badly that I just wouldn't use any sharpening when there was something red in the picture... until I discovered Chroma Blur. Applying a little chroma blur (H=0.500 and V=0.500 pixels) appears to fix it and not have any other ill effects that I can see.
So, I thought I'd make the below video to share this trick with others. Funny thing is, I render it out to a DNxHD intermediate to prep for encoding in Handbrake and then do the Handbrake encode. The .mp4 file from handbrake shows almost zero evidence of the artifact I saw on the timeline (on the shots not "fixed" with chroma blur). The wise folks here probably understand the technical explanation for why this is, but my pedestrian guess is that the encoding somehow smooths out this ugliness. I verified, by the way, that the DNxHD .mov shows the artifacts clearly.
Anyway, now I'm not even sure if I'll bother with the chroma blur trick, now that it appears that the resulting encoded file (at web bit rates, anyway) will look okay. Perhaps if I'm creating a Blu-ray disc at high bit rates I'll bother.
Has anyone else noticed this?
https://vimeo.com/42314148
Problem is, whenever there was a red or orange object in the shot, the preview in Vegas looked awful, with artifacts at the border of the red and any other color. Sharpening (even set at zero) worsened the artifact so badly that I just wouldn't use any sharpening when there was something red in the picture... until I discovered Chroma Blur. Applying a little chroma blur (H=0.500 and V=0.500 pixels) appears to fix it and not have any other ill effects that I can see.
So, I thought I'd make the below video to share this trick with others. Funny thing is, I render it out to a DNxHD intermediate to prep for encoding in Handbrake and then do the Handbrake encode. The .mp4 file from handbrake shows almost zero evidence of the artifact I saw on the timeline (on the shots not "fixed" with chroma blur). The wise folks here probably understand the technical explanation for why this is, but my pedestrian guess is that the encoding somehow smooths out this ugliness. I verified, by the way, that the DNxHD .mov shows the artifacts clearly.
Anyway, now I'm not even sure if I'll bother with the chroma blur trick, now that it appears that the resulting encoded file (at web bit rates, anyway) will look okay. Perhaps if I'm creating a Blu-ray disc at high bit rates I'll bother.
Has anyone else noticed this?
https://vimeo.com/42314148
