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YiMAX-PRO script for Xiaomi Yi action camera.

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  • YiMAX-PRO script for Xiaomi Yi action camera.

    No more 'watercolor' look. The real 'flat' picture. Optimized bitrate settings.
    Attached Files
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  • #2
    Note halftones, edges and details.
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    • #3
      Another demonstrative comparison:
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      • #4
        A very nice review of Yi cam hacking using autoexec scripts posted at DIYP by John Aldred:
        I needed an action camera to document DIYP’s trip to Photokina in September. I didn’t really want to have to fork out for a GoPro. It’s just not something I’d use often enough to justify the cost. So, I looked into the cheaper alternatives. This is when I found the Yi HD Action Camera, and some of [...]
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        • #5
          I really want to say: thank you! This makes the Yi much better! Now I'm getting started with Davinci Resolve for color grading.

          Another question: Is a video timelapse in 2k with this flat color possible?

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          • #6
            Originally posted by Ultrazauberer View Post
            Is a video timelapse in 2k with this flat color possible?
            I can say for sure that taking photos has problems with YiMAX-PRO (due to some HW limitations). There are no certain issues preventing from shooting a timelapse in video mode.
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            • #7
              Hmm, okay, but there is only 1080p in video timelapse mode and I think the colors are not so flat like it should.

              And which problems you are facing with taking pictures? Because suddenly my Yi frozen and won't react. I had to pull out the battery. At this time I was shooting lots of RAWs. I thought the SD card is the problem.

              Two questions:
              - There is a RAW timelapse script. It shots 7.9 exposures in 8sec intervals. I want to shot at day light with 8 seconds interval too. Can I just set the ISO to 100 and leave the shutter speed on auto? Because I want to shot a day to night timelapse and don't want to overexpose the daytime shots.
              - On your XiMAX-PRO script, where should I insert "t ia2 -awb off" for disabling the Auto-WB in video mode? In the main loop?

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              • #8
                Originally posted by Ultrazauberer View Post
                And which problems you are facing with taking pictures? Because suddenly my Yi frozen and won't react. I had to pull out the battery. At this time I was shooting lots of RAWs. I thought the SD card is the problem.
                The trouble occurs when a photo is taken in the same time with script updating its settings.

                Two answers:
                - Yes, 8 sec should be enough to save a RAW file without any problem. But here you have to choose: night or day, under- or overexposure because auto shutter will not go any close to 7.9 sec at any ISO
                - You must change 't ia2 -3a 1 1 0 1' to 't ia2 -3a 1 0 0 1' in the main loop and add your "t ia2 -awb off" above it in order to work properly.

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                • #9
                  This is an example how Xiaomi Yi camera perfoms with 7.9 sec shutter and ISO 3200 in the night.
                   
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                  • Code11
                    Code11 commented
                    Editing a comment
                    Very nice!

                  • nutsey
                    nutsey commented
                    Editing a comment
                    Thank you!

                • #10
                  Thank you for the information. You captured a nice timelapse!

                  What about video-timelapse mode? If I change to video-timelapse in the Yi Action Cam App the resolutions drops to 1080p and it seems your YiMAX-PRO script isn't working. Maybe there is a video mode for 2K and 5fps or something similar? That would be nice to have a in-camera timelapse video in 2K! :-D

                  Just for entertainment I attached two snapshots to demonstrate the capabilities of the Yi with your Script! I changed the lens to a 3mm non-fisheye f/3.5 one. I really like this combination.

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                  • #11
                    Originally posted by Ultrazauberer View Post
                    I changed the lens to a 3mm non-fisheye f/3.5 one.
                    Looking good. Can you provide more details for this lens?
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                    • #12
                      It's this one: http://www.ebay.com/itm/MOJ-Lens-3mm...0AAOSwnH1WWvTx

                      I attached a converted RAW image with 100% crops in the frame. I like the lens, but the flaring is quite present. Aiming in direct sun looks cool but if the sun is slightly out of the frame the flaring is ugly. I think a lens hood should help.

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                      • #13
                        Originally posted by nutsey View Post
                        - You must change 't ia2 -3a 1 1 0 1' to 't ia2 -3a 1 0 0 1' in the main loop and add your "t ia2 -awb off" above it in order to work properly.
                        Thanks for that, I will try it. Is there a possibility to lock the exposure? For example meter the scene once and keep the exposure settings... This would be useful when filming against the sun. You could aim for a shadow area, turn on the cam and then start recording and point to the right frame.

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                        • #14
                          It doesn't seem to work with software version 1.3.0. The camera keeps beeping when trying to boot. Is there a new version or am I perhaps doing something wrong. Help will be appreciated.

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                          • nutsey
                            nutsey commented
                            Editing a comment
                            Unfortunately I don't have Z25 Yi cam with 1.3.0 at the moment. So I can't find out what's wrong.

                        • #15
                          Hello,nutsey:
                          Can the yimax files co-exist with the Ximode 2.1 files?
                          Last edited by TwoBlues; 11-21-2016, 12:53 AM.

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                          • nutsey
                            nutsey commented
                            Editing a comment
                            I suppose someone can modify yitune part of ximode which is originally yimax movie script...
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