Change Background Image

In photography and photograph related works, changing background color and then adding a new customized background is not only very common work to do but also very popular. Professionals knows how to do it properly and effectively so that it does not look artificial but look natural and beautiful. In this topic, I will discuss how to remove background. First of all, where is it necessary? and why we need to do this. For example, you took a photo of your friend, sitting in front of a wall, but the photo was beautiful, you want to use that photo somewhere, maybe in Facebook wall, but that background wall making it dull looking. Obviously you want change that background and maybe you want to add a beautiful background of rainfall or flowers etc. Let's start it and know how you can do it easily.
Video Tutorials >>

First off, we will be needing an photo editing software in general, or we can even use an online photo editing site also. Here I mentioned the term "in general" because it is also possible to remove background effectively without a so called photo editing software, it it also possible to do it in vectors based drawing software also such as "Corel Draw" anyway we won't discuss about it here, because it may looks like difficult. As we know that it is possible in various photo editors. Basic question is, which one should be chosen? Photoshop is a widely known and very famous for photo editing. It is not difficult at all to do few basic steps of Photoshop, without having in depth knowledge.
Background selected

Software is not human. Why I'm saying this right here? Because when we need to differentiate background portion from the original portion we want to separate, we need to know that it sometime possible that the software can automatically select the background, we got to realize where it can auto detect the back and where it can't. Selection is the first step to do. We can always select the background portion manually, drawing a selection in the edges of the portion we want to keep or we can draw a shape and latter converting the shape into selection. Back to the topic I started first, why we need to draw a selection manually whereas in some cases software can do it automatically. We just gotta learn where and how it is possible. Magic wand, magnetic lasso, background removal tools are these types of automatically selection tools in "Photoshop". Magic wand tool can select the background portion at one click with proper tolerance level. Is it magic? well even the name suggest like this, this is not magic. This tool can detect similar color range, tolerance level is to adjust that range. Confused? No confusion, let's say we have a picture of your friend wearing colorful dress, not white at all and he is standing in from of a white curtain or wall. Now if we click at the white portion of the background with magic tool, with the default tolerance level (32) it will automatically select the white background then we can delete the background by pressing the "delete key" and then add a completely different back behind it.

Now you will notice that magic wand tool or these types of automatic tools won't work every time specially when back color is nearly similar to the portion we want to keep, also if the background color is complicated in a way that there are too many color variations, for example your friend standing in from of your Gardner, there are trees flowers etc. So what can we do now? magic wand tool can't show it's magic now. So should we manually select it now? no wait there are other tools and procedures which can help in this situation, at least partially. Magnetic lass tool or Background remove tools can be helpful. With magnetic lass tool we just need to drag the mouse on the edges of the photo, like a magnet the line of selection keeps getting stuck at the near by edges you move the mouse. This tool works on the basics of color difference, it can detect the color difference and they to differentiate a color portion from different color portion. Basically all of these tools have limitations and can't go beyond that. That's where manual selection procedures comes to play. Though there is not only one manual selection tool rather there are many. For example in mask mode with a brush we can fill the area we want to keep and coming back to normal mode, we can easily delete the back. It is also possible to invert the selection by "select inverse" option. During this process we can use multiple tools or selection methods. Just use "shift + click" to add a new selection in the existing one, similarly use "alt + click" to subtract a new selection from the old one. In this way if you did any mistake to make a selection you can refine it or make it more accurate.

Now we have selected the area we want to remove. Before you delete the selected area you may smooth that selection or add a bit "featherness" to it. The ultimately it will make the image smoother, do it wisely because it can damage the picture also. The basic part is complete, now bring a beautiful image of nature or any graphic and send it to back. Show some common sense and place the photo carefully because it may be place wrongly. I will try to put s simple example here. Let's say we have a picture of a person sitting on bench. You took that photo and removed the background and the bench also, that is fine not a problem, but make sure that you have any kinda chair in you archive. Import a chair place properly at the back of that person but front of the background image.

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