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Getting pixel position of a text in an image


Getting pixel position of a text in an image

By : sreejith pulickal
Date : December 01 2020, 04:55 PM
To fix the issue you can do If I understood you right you want to move your mouse and click on the screen. That not that hard you could use the robot class from Java!
For example:
code :


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how to find pixel position of image from sprite image

how to find pixel position of image from sprite image


By : ibn iq
Date : March 29 2020, 07:55 AM
Hope that helps Another, easier way to do this is through this site called Sprite Cow. I just tried it recently, and it makes things go by much faster.
Get pixel position of particular point upon resizing the image i.e changing the resolution of image

Get pixel position of particular point upon resizing the image i.e changing the resolution of image


By : Prasanna Patil
Date : March 29 2020, 07:55 AM
wish help you to fix your issue Hi I have image of 1130*2074 resolution I marked a point at pixel 500,430 I have resized it to 1280*1024 how to get changed pixel position i.e what will be the new position of pixel 500,430 I know that basically pixel size was affected but still..
code :
newX = (500/1130)*1280;
newY = (430/2074)*1024;
newX = (currentX/currentWidth)*newWidth
newY = (currentY/currentHeight)*newHeight
HLSL Set pixel position in pixel shader to control where the pixel will end up in the texture

HLSL Set pixel position in pixel shader to control where the pixel will end up in the texture


By : Abhijay Khandelwal
Date : March 29 2020, 07:55 AM
it helps some times Basically you can't do what you're describing.
After the vertex shader, the GPU has a collection of triangles to draw. It fills them, pixel-by-pixel, on the render target (possibly the backbuffer). As part of this filling process - to determine the colour of each pixel - your pixel shader gets called (like a function) for that specific pixel being filled. There is no capacity at this point for "moving" the output pixel.
For each pixel in a image, get the color, pixel position, and coordinates relatively to the image

For each pixel in a image, get the color, pixel position, and coordinates relatively to the image


By : stephanosaurus
Date : March 29 2020, 07:55 AM
I hope this helps you . I suggest you study the BMP file format article over at wikipedia, especially the Pixel storage section.
code :
B G R B G R P P B G R B G R P P
B G R B G R B G R B G R B G R B G R B G R B G R
Canvas position to image pixel

Canvas position to image pixel


By : limeash
Date : March 29 2020, 07:55 AM
will help you I want to draw rectangles over an image to markup specific regions. I saw this question: Draw Rectangle over Image and it worked. I get a rectangle over the image. Now i want to get the real pixel position on the image. I know i get some data over Canvas.Left, Canvas.Top but where is the relationship between Canvas and image position? , To make this work you can easily put it in a viewbox like this:
code :
<Viewbox> <!-- I will make this construct fit everywhere -->
    <Grid> <!-- I will be exactly the size of the image -->

        <Image Source="/MyImagegeWithResolutionOf1080x720p.jpg"
            Width="{Binding Source.PixelWidth, RelativeSource={RelativeSource Self}}"
            Height="{Binding Source.PixelHeight, RelativeSource={RelativeSource Self}}"
            Stretch="Fill"/>

        <Canvas> <!-- use me to draw your stuff -->
            <Rectangle Width="10" Height="10" Canvas.Bottom="360" Canvas.Left="540"/> <!-- I will be in the center -->
         </Canvas>
    </Grid>
</Viewbox>
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