Filters Kernels and Convolution in Image Processing

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  • Опубликовано: 23 окт 2024

Комментарии • 36

  • @AnsonSavage
    @AnsonSavage 2 года назад +3

    Awesome! Great explanation, thanks!

  • @faythe03
    @faythe03 4 года назад +3

    Thanks for the easy explanation!

  • @manishbusinesslancer3093
    @manishbusinesslancer3093 3 года назад +1

    very good explanation. Thanks a lot.

  • @mahishakyani664
    @mahishakyani664 3 месяца назад

    Thank you..❤

  • @nehachaudhary4388
    @nehachaudhary4388 4 года назад +5

    Shouldn't the value received by adding all the numbers (after multiplication with image matrix and kernel matrix) be put at the center of the matrix i.e., at the position where '5' is there

    • @nipunharitash
      @nipunharitash  4 года назад

      Nope mam , it's placed on the left hand top corner . See my subsequent video for visual presentation of this.

    • @kshitijchhajed3242
      @kshitijchhajed3242 2 года назад

      Yes, even I've the same question. Because output of convolution is same as image size. Also, by this way you won't be able to convolve last 2 columns!

    • @ozgeergun137
      @ozgeergun137 2 года назад

      that is right, this video is wrong..

    • @MrHaien1
      @MrHaien1 2 года назад

      @@kshitijchhajed3242 Output size is not automatically the same as input. You can make it so by padding, however the video is indeed correct.

  • @tylersehon120
    @tylersehon120 3 года назад

    Thank you Nipun!

  • @SvSzYT
    @SvSzYT 3 года назад

    keras.layers.Conv2D(32, (3, 3)) uses 32 filters, right?
    keras.layers.Conv2D(256, (3, 3)) even uses 256 filters that are all the same? How do they look like? are they structured like this: [[ 1 0 1 ] [ 0 1 0 ] [ 1 0 1 ]] how can i choose different filters.
    why use many filters in the first place? isnt one enough?
    this is pretty cryptic to me and i dont find any pages on the web on this topic

  • @hillsonghimire
    @hillsonghimire 3 года назад

    Informative Video!

  • @MrRobi10
    @MrRobi10 3 года назад

    Hello, I have an 11×11 image having in its center a 5×5 square, the image it's noiseless and I don't know how to compute the gradient of the image function given by the compass operator for this image. If I remember correctly, I should use a derivative, but I don't know exactly what and how can I use it. Can you please help me?

  • @Ramon-ei5bc
    @Ramon-ei5bc 3 года назад

    what would happen if used a 1x3 kernel instead of a 3x3

  • @_FerryFebrian
    @_FerryFebrian 2 года назад

    thanks sir, you help me for the morning test

  • @rawalrohit7929
    @rawalrohit7929 3 года назад

    Great explanation

  • @sourabhpatravale8348
    @sourabhpatravale8348 3 года назад +1

    Great 👏

  • @RifatIslam-dv7tc
    @RifatIslam-dv7tc 4 года назад

    I am using X as a filter that is 1 for X and 0 for other pixels. My filter is a 5 by 5 filter. My image is also an X but my output is coming only a circle at the center of the image. I am confused why? please can you help?

  • @TariqKhan-su9te
    @TariqKhan-su9te 3 года назад

    How can I see the 19 lectures before

  • @UsamaChishti
    @UsamaChishti 4 года назад

    This is informative video

  • @DheaFikyFatchaturRizky
    @DheaFikyFatchaturRizky 4 года назад

    thankyou so much

  • @khushboosaglani9139
    @khushboosaglani9139 4 года назад

    What is the difference between kernal and filter size?

    • @nipunharitash
      @nipunharitash  4 года назад

      Kernel is 2D arrangement of weights and when a few Kernels together perform convolution or in 3D ,its a filter. So a 2D filter and a kernel is same

  • @TejasPhase
    @TejasPhase 5 лет назад

    Respected Sir,
    Thanks for this video with a detailed explanation.
    Now, can you make a video on the Cross-Correlation formula? And also explain in it how it works?

    • @nipunharitash
      @nipunharitash  5 лет назад

      Thanks and I will surely try to make one video on that soon :)

    • @TejasPhase
      @TejasPhase 5 лет назад

      @@nipunharitash Ok Sir. I am waiting for that.

  • @zakirfan9191
    @zakirfan9191 4 года назад

    sorry can i ask you something, related to this video, but no so related actualy ahahaha
    I use Quantum GIS for process my image, i want to use majority filtering, but there is a problem, they want me to choose a square or a circle for the choose mode (one of the paramter, you can check all the parameter here: www.saga-gis.org/saga_tool_doc/2.2.0/grid_filter_6.html)
    what i want to ask is, what is search mode? how circle work and square either
    I think this tool use convolution
    thanks

    • @nipunharitash
      @nipunharitash  4 года назад

      I regret to tell you this that I find myself totally flung on this one. I'm really not sure. I tought this topic at undergraduate level once and never got a chance to bump into it again :)

    • @zakirfan9191
      @zakirfan9191 4 года назад

      Oh okey noprob, btw your video teach me well :D keep it up

  • @SherKhan-yu1gp
    @SherKhan-yu1gp 2 года назад

    how to code this filter in python man?