Text looks fuzzy after exporting

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  • Updated 1 year ago
  • (Edited)
The recording in Camtasia looks super sharp. However, after exporting it to MP4 (with everything maxed out, 100% quality and highest bitrate) the text loses its sharpness and looks fuzzy. I have already ensured that my recording size and output size are same so I've been unable to jot down the problem.

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Muhammad Fahad Baig

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Posted 1 year ago

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Robert R., Online Community Admin

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Hello;

What resolution are you recording? What are your project dimensions? What resolution are you producing to?

-Robert
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Muhammad Fahad Baig

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I'm recording an active window. So the resolution is 800x500. Same dimensions are set for the Project and the final rendered video.
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Joe Morgan

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The default output setting of 60% quality should give you crystal clear text without blurring.

Do your "Project Settings" match the recorded video dimensions and output settings? All three of these numbers much match exactly for best results.



60% Quality mp4.  Click image for clarity.
 
Regards,Joe
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Muhammad Fahad Baig

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This did made text a little clear but the color was all washed out.
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Craig Leith

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I have also found a loss in quality, even when matching all 3 numbers - typically this is when a transition is being applied (Even when the transition is not on that item)

My default is 720p with no zoom, so it should reproduce perfectly, but...
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Kevin Mojek, Employee

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From the first image, that looks like the fuzziness may be just inherent to the MP4 format. One of the ways that the size of the video stream is compressed is by converting colors to a luminance / chrominance format and saving off the two chrominance channels at half the resolution (more complete explanation of this is available at https://en.wikipedia.org/wiki/YCbCr). This is a very old idea that goes back to the days of black-and-white television. It works great for most real-world video content as it saves a ton of space and the result is nearly indistinguishable to the human eye.

There are some cases where storing the color info at half the resolution is noticeable though... probably the one we most commonly see is with relatively small text and a high-contrast background... pure red, green, or blue over a black background, which is what's going on here. Unfortunately there's no easy fix... that's just something that's built into the H.264 video standard. There are other formats which don't do this type of compression (AVI with the default TSC2 codec for example) but those are a lot less shareable since the MP4 format has become ubiquitous.
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Muhammad Fahad Baig

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That's what I think it is too. But I would really love to export the video in the same quality as Camtasia Recording. Maybe you should add support to export a video in full RAW format (any uncompressed format). The user then could use 3rd Party tools like Handbrake to compress the file preserving as much quality as possible thanks to the fine tuning provided by Handbrake.
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Muhammad Fahad Baig

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Yep definitely this is how MP4 container works (but maybe due to the codec used). I used Handbrake and got the same result as produced by Camtasia.
(Edited)