# How To Determine Pixel Per Meter In Matlab

In this article, we will discuss how to determine pixel per meter in MATLAB. This is an important concept for those working with images and videos, as it helps to accurately measure distances and sizes in the real world.

## Introduction

Before we begin, let’s define what pixel per meter means. Pixel per meter refers to the number of pixels that can be displayed on a screen or printed on paper for each meter of distance in the real world. This is an important concept because it helps us to accurately measure distances and sizes in images and videos.

## Determining Pixel Per Meter in MATLAB

To determine pixel per meter in MATLAB, we can use the following steps:

1. First, we need to know the physical size of the image or video. This can be obtained by using the `size()` function in MATLAB.
2. Next, we need to know the resolution of the display device. This can be obtained by using the `get(0,'ScreenSize')` function in MATLAB.
3. Finally, we can use the following formula to calculate pixel per meter:
4. `PixelPerMeter = (PhysicalWidth / ResolutionX) * 1000`

where PhysicalWidth is the physical width of the image or video, ResolutionX is the resolution of the display device in pixels per meter, and 1000 is a conversion factor to convert from meters to millimeters.

## Conclusion

In conclusion, determining pixel per meter in MATLAB is an important concept for those working with images and videos. By following the steps outlined above, we can accurately measure distances and sizes in the real world using MATLAB.