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    UNSOLVED 执行编译出来的./video12 800 800 60 得到的图像。像是按照4:3拉伸得到的图像， 并不是裁剪出来的800 *800的正方形

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    • N
      nb last edited by

      src.jpg

      b5cf921c-91f0-4b4c-a852-0ddee95fe0d9-image.png
      video.txt

      veye_xumm 1 Reply Last reply Reply Quote 0
      • veye_xumm
        veye_xumm @nb last edited by

        @nb 请问你使用的camera module型号，主板型号是什么？
        有没有配置ROI参数？

        N 2 Replies Last reply Reply Quote 0
        • N
          nb @veye_xumm last edited by

          @veye_xumm mv-imx296

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          • N
            nb @veye_xumm last edited by

            @veye_xumm 主板是RK3588 ROI驱动里没有配置过

            veye_xumm 1 Reply Last reply Reply Quote 0
            • veye_xumm
              veye_xumm @nb last edited by

              @nb
              参考我们这个demo，我看到你的代码中

              std::string v4l2_cmd = "media-ctl -d /dev/video0 --set-v4l2 '\"m00_b_mvcam 7-003b\":0[fmt:Y8_1X8/" + std::to_string(width) + "x" + std::to_string(height) + "@1/" + std::to_string(fps) + " field:none]'";

              -d /dev/video0似乎应该改为-d /dev/media0

              N 2 Replies Last reply Reply Quote 0
              • N
                nb @veye_xumm last edited by

                在video12.cpp里改成了-d /dev/media0， 出图还是会有拉伸的效果，
                附近上传的是rk3588的dmesg 打印。还有video12.cpp的应用程序。还有就是出图效果png文件，帮忙再分析看看是什么原因

                video12.txt test.png log-3-12.txt

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                • N
                  nb @veye_xumm last edited by

                  @veye_xumm

                  用你们的python demo v4l2dev_2_opencv_show_grey.py出图也是一样的效果

                  test2.png

                  veye_xumm 1 Reply Last reply Reply Quote 0
                  • veye_xumm
                    veye_xumm @nb last edited by

                    @nb 我看你执行这两个程序都有报错的提示。
                    猜测可能你的板子跟我们例程的板子有所不同。具体而言就是是不是/dev/video0和/dev/media0对应着这个相机？
                    看现象就是ROI没有正确按照你想要的配置进去。你可以用i2c脚本直接读取参数的形式来确认这一点。

                    ./mv_mipi_i2c.sh -r -f roi -b your_i2c_bus_number

                    https://wiki.veye.cc/index.php/Mv_mipi_i2c.sh_user_guide#roi.2A

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                    • N
                      nb @veye_xumm last edited by

                      @veye_xumm 系统启动后 ，直接用python3 v4l2dev_2_opencv_show_grey.py --width=1440 --height=1088 --fps=60 这个来出图，不做任何ROI裁剪 ，得到的图像，也是有拉伸效果。 所以我觉得 应该不是 后期通过i2c配置ROI导致的。
                      1440-1088.png

                      veye_xumm 1 Reply Last reply Reply Quote 0
                      • veye_xumm
                        veye_xumm @nb last edited by

                        @nb 相机本身并不具备单个方向缩放的能力，你可以尝试参考7.4.3或者7.4.4保存一个图片，然后查看一下。

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                        • N
                          nb @veye_xumm last edited by

                          @veye_xumm said in 执行编译出来的./video12 800 800 60 得到的图像。像是按照4:3拉伸得到的图像， 并不是裁剪出来的800 *800的正方形:

                          7.4.3

                          好的 我试下 非常感谢你的帮助

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                          • N
                            nb @nb last edited by

                            @nb 用这个命令./yavta -c1 -Fy8-${1440}x${1088}.raw --skip 0 -f Y8 -s ${WIDTH}x${HEIGHT} /dev/video0 抓到的raw图像然后转成png后，看到的还是会有拉伸效果

                            veye_xumm 1 Reply Last reply Reply Quote 0
                            • veye_xumm
                              veye_xumm @nb last edited by

                              @nb
                              raw8数据可以直接用这个播放器看，不需要转。另外你可以把原始数据文件压缩一下传上来我看看。
                              https://yuv-player-deluxe.software.informer.com/2.6/

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                              • N
                                nb @veye_xumm last edited by

                                @veye_xumm 【有道云笔记】抓图测试raw 文件
                                https://note.youdao.com/s/J6oOs0K3

                                你好 ，论坛 不支持上传raw文件，我直接把./yavta -c1 -Fy14-${WIDTH}x${HEIGHT}.raw --skip 0 -f Y8 -s ${WIDTH}x${HEIGHT} /dev/video0 用这个命令抓到的文件，上传到自己的有道云笔记上了，然后上面是分享出来的链接。

                                gensong@ros2-ubuntu20-by-nb:~/yavta-main$ ./yavta -c1 -Fy14-${WIDTH}x${HEIGHT}.raw --skip 0 -f Y8 -s ${WIDTH}x${HEIGHT} /dev/video0
                                Device /dev/video0 opened.
                                Device rkcif' on platform:rkcif-mipi-lvds2' (driver 'rkcif') supports video, capture, with mplanes.
                                Video format set: Y8 (59455247) 1440x1088 field none, 1 planes:

                                • Stride 1536, buffer size 1671168
                                  Video format: Y8 (59455247) 1440x1088 field none, 1 planes:
                                • Stride 1536, buffer size 1671168
                                  8 buffers requested.
                                  length: 1 offset: 4269494424 timestamp type/source: mono/EoF
                                  Buffer 0/0 mapped at address 0x7f93a9a000.
                                  length: 1 offset: 4269494424 timestamp type/source: mono/EoF
                                  Buffer 1/0 mapped at address 0x7f93902000.
                                  length: 1 offset: 4269494424 timestamp type/source: mono/EoF
                                  Buffer 2/0 mapped at address 0x7f9376a000.
                                  length: 1 offset: 4269494424 timestamp type/source: mono/EoF
                                  Buffer 3/0 mapped at address 0x7f935d2000.
                                  length: 1 offset: 4269494424 timestamp type/source: mono/EoF
                                  Buffer 4/0 mapped at address 0x7f9343a000.
                                  length: 1 offset: 4269494424 timestamp type/source: mono/EoF
                                  Buffer 5/0 mapped at address 0x7f932a2000.
                                  length: 1 offset: 4269494424 timestamp type/source: mono/EoF
                                  Buffer 6/0 mapped at address 0x7f9310a000.
                                  length: 1 offset: 4269494424 timestamp type/source: mono/EoF
                                  Buffer 7/0 mapped at address 0x7f92f72000.
                                  any 0 1671168 B 10294.365447 10294.365674 30.115 fps ts mono/EoF

                                  Captured 1 frames in 0.033432 seconds (29.910778 fps, 0.000000 B/s).
                                  8 buffers released.
                                  这个是抓图时的打印log输出
                                veye_xumm 1 Reply Last reply Reply Quote 0
                                • veye_xumm
                                  veye_xumm @nb last edited by

                                  @nb
                                  你这个图片有一些莫名其妙的竖条纹，我觉得相机的输出和你的接收现在是不配套的。你执行

                                  ./yavta -c1 -Fy14-${WIDTH}x${HEIGHT}.raw --skip 0 -f Y8 -s ${WIDTH}x${HEIGHT} /dev/video0

                                  之前设置WIDTH或者HEIGHT等全局变量了吗？

                                  3e27f441-0731-4add-8d7a-c041a4e67edf-image.png

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                                  • N
                                    nb @veye_xumm last edited by

                                    @veye_xumm said in 执行编译出来的./video12 800 800 60 得到的图像。像是按照4:3拉伸得到的图像， 并不是裁剪出来的800 *800的正方形:

                                    之前设置WIDTH或者HEIGHT等全局变量了吗？

                                    1.png

                                    配置了的 写了个脚本 ，会先执行 source ./set-wh.sh 然后再echo打印看下 ，配置的有没有成功

                                    veye_xumm 1 Reply Last reply Reply Quote 0
                                    • veye_xumm
                                      veye_xumm @nb last edited by

                                      @nb
                                      你的主板应该不是我用的ROC-RK3588S-PC吧？
                                      我怀疑是ROI配置没有配下去。
                                      你现在用这个命令读出来roi配置试试：

                                      ./mv_mipi_i2c.sh -r -f roi -b your_i2c_bus_number

                                      参考：
                                      https://wiki.veye.cc/index.php/Mv_mipi_i2c.sh_user_guide#roi.2A

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                                      • N
                                        nb @veye_xumm last edited by

                                        @veye_xumm mv7.sh.png
                                        这里得到的结果是0x05a0(1440) 0x0440(1088)

                                        你之前提供的脚本是2字节读写的，应该不对, 我做了些调整，改正4字节读写了 2.png

                                        N veye_xumm 2 Replies Last reply Reply Quote 0
                                        • N
                                          nb @nb last edited by

                                          @nb 我们是用 RK3588自己做的底板

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                                          • N
                                            nb @nb last edited by

                                            @veye_xumm 我有一个怀疑的点。是驱动里日志打印来看这里获取到最大值mvcam: mvcam_probe: max width 1456; max height 1088
                                            后 然后接着就是读取ROI， mvcam: mvcam_getroi:get roi(0,0,1440,1088)

                                            但是我并没有从驱动代码里找到 有设置ROI为14401088的地方，麻烦能告诉一下驱动里设置ROI为14401088的代码在哪里吗， 我想把驱动代码里设置ROI为1440*1088的代码给注释掉试试。

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