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    MV-MIPI-IMX296M 使用raw8视频流触发,获取画面不清晰

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    • W Offline
      WackyRabbits
      last edited by

      参照提供的demo,使用raw8像素格式进行视频流触发,获取到的图片没有贵司提供的预览模式画面清晰,麻烦帮忙分析一下是什么原因导致的

      veye_xummV 1 Reply Last reply Reply Quote 0
      • veye_xummV Offline
        veye_xumm @WackyRabbits
        last edited by

        @wackyrabbits 请问镜头聚焦了吗?

        Questions will be answered as soon as possible, please be patient.
        如果你使用中文,请直接用中文提问。
        May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

        W 1 Reply Last reply Reply Quote 0
        • W Offline
          WackyRabbits @veye_xumm
          last edited by

          @veye_xumm
          已进行对焦操作且使用相同的画质参数,raw8格式的清晰度与用提供的脚本预览的清晰度差很大

          veye_xummV 1 Reply Last reply Reply Quote 0
          • veye_xummV Offline
            veye_xumm @WackyRabbits
            last edited by

            @wackyrabbits
            不清楚你用的什么平台,我假设是用的jetson。
            那么你现在所说的预览脚本,是gstreamer调用UYVY格式进行预览的命令行吗?

            如果是这样,UYVY格式数据是RAW8格式数据源做了一定的数据填充而制作的。也就是说UYVY格式中的U和V全部设定为0x80,Y就是RAW8数据本身,并无任何不同。
            你所讲的‘清晰度差异很大’,我认为很有可能是感官上的对比度导致的错觉。
            可能的原因有:

            1. gstreamer的屏幕和你查看raw8的不是一个屏幕。
            2. gstreamer的播放器,也就是nv3dsink本身有对比度或者锐度增强的作用,而raw8播放器并无此功能。

            要确认此问题,最直接的方法是采用清晰度卡,摄像机拍摄清晰度卡然后两种模式读卡确认清晰度。如果没有清晰度卡,用书本或者宣传页来模拟也可以。

            Questions will be answered as soon as possible, please be patient.
            如果你使用中文,请直接用中文提问。
            May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

            W 1 Reply Last reply Reply Quote 0
            • W Offline
              WackyRabbits @veye_xumm
              last edited by

              @veye_xumm
              好的,您推测的正确的,我们这边在研究研究

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