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  4. Is it possible to create something invisible to a human eye

Is it possible to create something invisible to a human eye

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  • M Offline
    M Offline
    MCSIDevelopers
    wrote on last edited by
    #1

    Hi Guys. I'm just conducting a research. Is it possible to create a round shape on screen that can be invisible or not seen by human eye,which can be seen by software that perform something like bio-metric reading/face detector. Its can not be only a shape even if its some sort of light/image that is impossible for a human to see but possible to software doing similar as face detection? If this is possible how could one go about doing this and what this form is called and also if any knows samples, documentation about this. I know this maybe a complex question but as I've said I'm conducting a research on this.

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    • M MCSIDevelopers

      Hi Guys. I'm just conducting a research. Is it possible to create a round shape on screen that can be invisible or not seen by human eye,which can be seen by software that perform something like bio-metric reading/face detector. Its can not be only a shape even if its some sort of light/image that is impossible for a human to see but possible to software doing similar as face detection? If this is possible how could one go about doing this and what this form is called and also if any knows samples, documentation about this. I know this maybe a complex question but as I've said I'm conducting a research on this.

      L Offline
      L Offline
      Lost User
      wrote on last edited by
      #2

      If it's visible on screen then it must be visible to the eye. I think the laws of physics apply.

      M 1 Reply Last reply
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      • L Lost User

        If it's visible on screen then it must be visible to the eye. I think the laws of physics apply.

        M Offline
        M Offline
        MCSIDevelopers
        wrote on last edited by
        #3

        Hi, thanks. but what I mean is that if it can be something that will not block a user from seeing from the screen. Something like water mark. even if its visible but a user must be able to see through it clearly.

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        • M MCSIDevelopers

          Hi, thanks. but what I mean is that if it can be something that will not block a user from seeing from the screen. Something like water mark. even if its visible but a user must be able to see through it clearly.

          L Offline
          L Offline
          Lost User
          wrote on last edited by
          #4

          Yes, it's called alpha blending, where an image is semi-transparent.

          M 1 Reply Last reply
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          • L Lost User

            Yes, it's called alpha blending, where an image is semi-transparent.

            M Offline
            M Offline
            MCSIDevelopers
            wrote on last edited by
            #5

            Thanks and this looks as if its exactly what I'm looking for, but what how can I make this be sort of transparent? I mean the whole form with one picture to be sort of transparent so that I can see through it while the picture is not 100% invisible but be a see through? I want my form to be OnTop always and it must not block me from using a computer, I must be able to see through it with the picture or make it show lets say after 20 seconds and be 100% transparent and after 20 seconds be maybe 99.8% or 99.9% transparent. The transparent must be something which I can also detect by maybe a face detector technique. How can I achieve this? Thanks again.

            L 1 Reply Last reply
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            • M MCSIDevelopers

              Thanks and this looks as if its exactly what I'm looking for, but what how can I make this be sort of transparent? I mean the whole form with one picture to be sort of transparent so that I can see through it while the picture is not 100% invisible but be a see through? I want my form to be OnTop always and it must not block me from using a computer, I must be able to see through it with the picture or make it show lets say after 20 seconds and be 100% transparent and after 20 seconds be maybe 99.8% or 99.9% transparent. The transparent must be something which I can also detect by maybe a face detector technique. How can I achieve this? Thanks again.

              L Offline
              L Offline
              Lost User
              wrote on last edited by
              #6

              See Form.Opacity Property (System.Windows.Forms)[^].

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