How to calculate resolution or percentage pixels in an image

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Shane Conder
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Therefore, if you want the image to contain more information, it is necessary have more pixels per inch. But when making an image, the most important thing is the final result we will get, digitally or in print.

However, don't worry, in this post we will teach you how calculate resolution or pixels as a percentage and be able to obtain the expected result in the end.

Resolutions in images

The resolution of an image is what we get will communicate the number of pixels and it also takes care of classifying most of the devices that are related to digital images; such as printers, televisions or computer screens, digital cameras, scanners, among others.



It is important to know that the resolution it will depend also from the device you are using, in this regard some devices can generate images in 1080p or 1080i.

If we refer to the camera, the number of pixels a photograph has will depend on the configuration and how many pixels it uses the CCD sensor of said camera while taking the picture. When we zoom in on the image, we can see that images are forming that have only one color; which indicates it can be split and means that the resolution of that image is up to there. However, with Photoshop it is possible to recover the pixels of a depixelated image.

When printing, the number of ink drops accepted in one square inch is very high; For example, if you are about to print an image and it doesn't have a good resolution, the image will be blurry; This is why modern printers today have a resolution of 600 or more DPI (dots per inch), which means that the droplets of ink you can put are 600 drops in color inks, in a row and in linear inches.



Therefore, if you have a photograph whose size is 3000 x 2000 pixels; the width of this will only be on the paper in thirteen centimeters, this is because the resolution is higher. In other words, the paper allows for the highest quality, since its resolution is much higher than the screen. In summary, we can say that the higher the resolution of the image, printing it will improve its quality. it is important to add that

Calculate resolution or pixels as a percentage in an image

To calculate the percentages of the images you can get three results of the same size, enlarge or reduce it. If it comes to a scanned image or if the image is printed, the final size should be approximately 5mm, larger than the original size. Therefore, to calculate the size as a percentage and not lose the resolution, you can do it in two ways: the final size and the original size.

It starts from the two-dimensional position width by height and the data will always be inserted according to the dimension in the same order. This percentage is called: reproduction factor and you can do this by applying a very simple formula.


What it is: (reproduction factor = reproduction size or model) / (source dimension) and therefore (reproduction percentage = reproduction factor) X 100; let's change the factor for its equality.

So you have to place. Reproduction percentage = Size of the reproduction or model / size of the original X 100.% = Dr / Do x 100 (you have to write it in fractions). Everytime, the original size of the data will be taken to match the width or height, in any case. But, if one of the two data fails to reach the size, you will have to choose the higher percentage in enlargement and the lower percentage in reduction.



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