Answer:
Step-by-step explanation with final answer: There are a few ways to tell how tall a person is in a picture, even though they are standing far away. One way is to use a known object in the picture as a reference. For example, if you know that a person is standing next to a door that is 6 feet tall, you can estimate their height by comparing their height to the height of the door.
Another way to estimate a person's height in a picture is to use a mathematical formula. One such formula is the following:
Person's height = (Known object's height * Person's height in the picture) / Known object's height in the picture
For example, if you know that a door is 6 feet tall and the person in the picture is 3 inches tall in the picture, then the person's height would be calculated as follows:
Person's height = (6 feet * 3 inches) / 12 inches per foot = 1.5 feet
This formula can be used to estimate the height of a person in any picture, regardless of how far away they are standing. However, it is essential to note that this is just an estimate, and the accuracy of the estimate will depend on the quality of the picture and the accuracy of your measurements.
Another way to tell how tall a person is in a picture is to use the vanishing point. The vanishing point is the point in the picture where all parallel lines converge. It is usually located on the horizon line. If you draw a line from the person's head to the vanishing point, and then measure the length of that line, you can estimate the person's height.
Here are some additional tips for estimating the height of a person in a picture:
Look for objects in the picture that you know the height of, such as a door frame or a basketball hoop.
Pay attention to the person's proportions. For example, if the person's legs are much longer than their torso, they are likely to be taller than someone with the same torso length but shorter legs.
Consider the person's posture. If the person is slouching, they will appear shorter than if they are standing up straight.
If possible, use a photo editing program to measure the person's height.
With a bit of practice, you will be able to estimate the height of a person in a picture with reasonable accuracy.
I hope this helps.