Relationship of pixel and resolution

Pixels and Resolution

relationship of pixel and resolution

The term resolution is often considered equivalent to pixel be called "Number of Total Pixels" in relation to image sensors, and. In today's article, we will discuss the underlying relationship between these two popular tech jargons, display resolution and pixel density. Pixels are also measured in terms of DPI (dots per inch) or PPI (pixels Understanding the relationship between image resolution and image.

In summary, no resolution is not the same as size, but they are related.

4 Basic relationship between Pixels

So quantity equals quality? Because of the aforementioned correlation between size and resolution, a lot of people think that megapixels equal quality. And in a sense it does because the more pixels you have to spread out, the higher the pixel density will be. However, on top of the quantity you should also consider the depth of the pixels, this is what determines the amount of tonal values that your image will have.

In other words it is the number of colors per pixel. For example, a 2-bit depth can store only black, white and two shades of grey, but the more common value is 8-bit. This is already more that the eye can distinguish which means that bit or bit will look relatively similar to us.

relationship of pixel and resolution

Of course, this means that your image will be heavier even of the size is the same, because there is more information contained in each pixel. This is also why quality and quantity are not necessarily the same. Therefore quantity helps, but also the size and depth of each pixel determine the quality.

This is why you should look all the specs of the camera and its sensor and not just the amount of Megapixels. How to choose and control image size and file size? First of all, you need to choose the outlet for your photo, there is a maximum density that you need. If you are going to post your image online you can do great with only 72 dpi, but that is too little for printing a photo.

If you are going to print it you need between and dpi.

Image resolution

Of course, we are talking about generalizations because each monitor and each printer will have slightly different resolutions as well. Anything bigger than that will only be taking up space on your hard drive.

Now, if the iPhone 5 had a smaller screen size with the same number of pixels, the denominator in the PPI equation would reduce hence giving you a higher PPI.

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This is obvious as there would be more pixels per inch, hence a higher pixel density. Like wise, if the screen size is constant and the pixels are increased, you would again get a higher PPI.

Wrap up In conclusion, it can be said that the relationship between display resolution and pixel density PPI is inversely proportional. This means, if you keep the resolution constant, and increase the screen size, you get a lower PPI, but vice versa, a decrease in the screen size gives you a higher PPI.

If you are after sharpness of a screen, you should always check the PPI of the display device,with the corresponding display resolution. A higher PPI delivers stunning graphics, crisp text and gives you the power to see even the fine detail. About Ali Gajani Hi. I am Ali Gajani. The following three pictures are: If it appears to fit on your screen, your browser has already resized it for you, even though you were forced to download the whole thing.

Click on that, and it should display at its full size. All the extra resolution is, in fact, completely wasted. Best practices Make your pictures smaller. Is it simply going to be viewed on a screen, or will it get printed?

Want your picture to be around five inches on screen?

Difference between Pixel and Resolution | Pixel vs Resolution

Five inches on paper? Then maybe pixels wide. Then, learn two terms: There are many out there; one probably came with your camera. Naturally, you can do both:

relationship of pixel and resolution