Matlab Image Processing Tutorial includes histograms and imhist

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  • Опубліковано 2 січ 2025

КОМЕНТАРІ • 62

  • @stewartdahamman
    @stewartdahamman 14 років тому

    Thanks for the great tutorial!
    Its great to hear an Irish man doing such a great hob.

    • @marcellusorlando3414
      @marcellusorlando3414 3 роки тому

      i dont mean to be off topic but does anybody know a way to log back into an Instagram account..?
      I somehow lost the password. I would appreciate any tricks you can give me.

    • @sorenkaden8615
      @sorenkaden8615 3 роки тому

      @Marcellus Orlando instablaster =)

    • @marcellusorlando3414
      @marcellusorlando3414 3 роки тому

      @Soren Kaden Thanks so much for your reply. I got to the site through google and Im waiting for the hacking stuff now.
      Seems to take a while so I will reply here later with my results.

    • @marcellusorlando3414
      @marcellusorlando3414 3 роки тому

      @Soren Kaden it did the trick and I finally got access to my account again. I am so happy!
      Thanks so much you really help me out !

    • @sorenkaden8615
      @sorenkaden8615 3 роки тому

      @Marcellus Orlando you are welcome :)

  • @08kanwal
    @08kanwal 12 років тому

    Thanks. Your videos are great for beginners for starting.

  • @VincenzoSantopietro
    @VincenzoSantopietro 10 років тому

    I'm so proud u have a Sorrento's picture..i'm from Naples!

  • @satendrakumarMATLAB-TUTORIALS
    @satendrakumarMATLAB-TUTORIALS 12 років тому

    Wonderful tutorial...keep posting many like this :)

  • @dorijan21
    @dorijan21 9 років тому

    Thank you for uploading this video.

  • @lovngjesus
    @lovngjesus 14 років тому

    Thanks a lot..Try to upload more presentations

  • @satendrakumarMATLAB-TUTORIALS
    @satendrakumarMATLAB-TUTORIALS 13 років тому

    Good one...Thanks for posting

  • @satendrakumarMATLAB-TUTORIALS
    @satendrakumarMATLAB-TUTORIALS 13 років тому

    Hey fell don't pay attention to the Big mouth who posted here something about your voice...It's good and the problem is with their ears.
    U did a gr8 job...

  • @tamilmaranc
    @tamilmaranc 9 років тому

    image mapping , very nice video thanks

  • @more5176
    @more5176 4 роки тому

    thank you very much 😍😍

  • @SweetBomber
    @SweetBomber 11 років тому

    Try the "Facecrypt" series of image-processing challenges! Its awesome!

  • @ChristopherHarris
    @ChristopherHarris 12 років тому

    great video! I hope there's more

  • @aldocatalan9297
    @aldocatalan9297 8 років тому +2

    it's possible to get an histogram from a cropped part of an image, using the command 'imcrop'?

    • @AnselmGriffin
      @AnselmGriffin  8 років тому

      Hi Aldo
      Thanks for the message. You are indeed able to get the histogram of a cropped image.
      Regards
      Anselm

    • @aldocatalan9297
      @aldocatalan9297 8 років тому

      Sorry for bother, but could you explain me how?, it's because once that i get the crpped part of the image, and i apply the command 'histogram' or 'hist', an error message is shown. I don't know how to name the cropped part as a variable so that i can not applied an histogram. Can you help me?

    • @aldocatalan9297
      @aldocatalan9297 8 років тому

      By the way i'm using the GUIDE to apply this in MatLab.

    • @aldocatalan9297
      @aldocatalan9297 8 років тому

      The image already is a measure of the intensity of the scene. If you
      read the image in with imread() or similar, then you have the light
      intensity.

  • @devindahlberg611
    @devindahlberg611 9 років тому

    Thank you for the video!

  • @sandeepchamoli3772
    @sandeepchamoli3772 7 років тому

    Hello sir, can you please suggest me how to get slice corresponds to each histogram elements?

  • @RB-mp5bc
    @RB-mp5bc 8 років тому

    hi there anselm, this video is really useful. However, I am facing problems with the uint8 problem whereby it doesn't allow me to execute the command of 'imshow(a)' and how you get the image of different class?

  • @ollekehoever9072
    @ollekehoever9072 8 років тому

    Hello Anselm, i have some greyscale images and i would like matlab to transform them back to RGB. Is there a way you can give me some information on how to do this please?

  • @sneha19821
    @sneha19821 11 років тому

    hey thanku.. that was useful.
    i am having trouble with "subplot(1,2,1),imhist(a_gray)" command
    when i m entering it there is no output shown in my system..
    please can u tell me y?

    • @abhisheksura8182
      @abhisheksura8182 10 років тому

      Yes off course

    • @abhisheksura8182
      @abhisheksura8182 10 років тому

      Yes off course

    • @tamilmaranc
      @tamilmaranc 9 років тому

      +Sneha Dimple ,, please confirm the array presents which you have crated subplot!!!

  • @AnselmGriffin
    @AnselmGriffin  15 років тому

    O means the absence (lack of)
    So in grayscale 0 means black
    255 means full luminance
    So in grayscale 255 means white
    In colour
    Say red)
    0 means no red
    255 means full red
    etc

  • @riken312
    @riken312 12 років тому

    nice

  • @motayam67
    @motayam67 9 років тому

    its really nice explanation but which surprised me that i could not see the histogram in RGB COLOR , WHY ?
    When i convert it to gray i study the histogram >>
    Any answer ?

  • @siluverukirankumar9954
    @siluverukirankumar9954 6 років тому

    *In the histogram what is that y axis exactly means ?*

    • @AnselmGriffin
      @AnselmGriffin  6 років тому

      siluveru kiran kumar Hi Siluveru. The y axis is the pixel count. The x axis gives the pixel value. Please note the 10 to the power of four at the top of the y axis. So for example if you go to x =100 boy can then read of the y axis how many pixels have a value of 100 by reading off the y axis. Thanks anselm

    • @siluverukirankumar9954
      @siluverukirankumar9954 6 років тому

      that means x=100 pixel have 10 to the power of four times in the all pixels of image, is this right?

  • @gamerzzbajran6225
    @gamerzzbajran6225 8 років тому

    is it same to use with matlab r2009a

  • @thangarajmj5814
    @thangarajmj5814 9 років тому

    rgb2gray(a); not working says
    Undefined function or method 'rbg2gray' for input arguments of type 'uint8'
    CAnu please help me?

    • @AnselmGriffin
      @AnselmGriffin  9 років тому

      +Thangaraj MJ rgb2gray only works for grayscale images. Are you using a colour (three layer) image. The error code you give suggests you are. Thanks

    • @thangarajmj5814
      @thangarajmj5814 9 років тому

      Thanks, CAn u help me to remove unwanted objects in an image using MATLAB...I'm a beginner

  • @excuse98
    @excuse98 12 років тому

    how to use imcrop in axes?

  • @kyuneecha90
    @kyuneecha90 11 років тому

    no offence but u have the voice of an angel, too husky and I can't really understand what are u talking about but anyway,useful video,thank you. (the 'almost' correct use of 'no offence')

  • @mesho977
    @mesho977 12 років тому

    pls, can u teel me what the name of this function ?

  • @MultiAlafasy
    @MultiAlafasy 12 років тому

    Good tutorial , but you go so fast , I replaid it many times to understand it , but thank you anyway :)

  • @vanthiennguyen5721
    @vanthiennguyen5721 11 років тому

    you can see "Digital Image Processing USING MATLAB (Gonzalez).pdf"

  • @lohhhc
    @lohhhc 13 років тому

    cant hear what youre mumbling. but overall its a helpful video

  • @mokhtariakati504
    @mokhtariakati504 8 років тому

    imagerie médical donner moi un exemple svp

  • @mernaemad2356
    @mernaemad2356 7 років тому

    hello do you have facebook?

  • @massimomorelli1242
    @massimomorelli1242 5 років тому

    sei un bombone

  • @ChristopherHarris
    @ChristopherHarris 12 років тому

    there is :)

  • @AnselmGriffin
    @AnselmGriffin  8 років тому

    hi robert. can you email at my work address please. sorry for delay in gettig back

  • @godbennett
    @godbennett 12 років тому

    sounds like someone from criminal minds...

  • @MrYahya0101
    @MrYahya0101 12 років тому

    Im sorry lol. I dont know what I was thinking..

  • @AnselmGriffin
    @AnselmGriffin  12 років тому

    No Offense? Strange way of showing no offense.

  • @budbundy87
    @budbundy87 13 років тому

    Nice video, but I can't understand a freakin word of his accent.

  • @ShaunYoung
    @ShaunYoung 13 років тому

    @budbundy87 fail

  • @黄梓宸-v4q
    @黄梓宸-v4q 10 років тому +1

    is there any ways to translate it into c++ code?

    • @jonathanperry8587
      @jonathanperry8587 7 років тому

      I think Matlab has a compile option which exports the Matlab code as C code. I believe it is the function mcc... but I am not 100%