Software:
Paint.NET program.
The audience: teachers, class teachers, students.
The purpose of the master class: Introduction to Paint.NET.
When inserting images from the Internet, it often appears White background, which distracts the attention of students and interferes with better assimilation of the material. Look at the snowman on the slide with a colored background:
Sometimes when installing transparent color in the presentation, it turns out that the white color is poorly removed or holes appear in the image.
How to make the picture look more attractive and visual?
The white background can be easily removed using the Paint.NET program. Paint.NET is a free raster image and photo editor for Windows, developed on the .NET Framework. Paint.NET is a great editor replacement graphic images, which is part of standard programs operating systems Windows.
Step 1. Download Paint.NET. The site from which you can download this program: http://paintnet.ru/download/.
Step 2 Install the program on your computer following the prompts.
Step 3 Launch Paint.NET. After starting the program window looks like this:
Step 3 We open the image we need through File - Open.
In the window that appears, select the desired picture on your computer.
Step 4 Remove the white background.
BUT) On the toolbar, select the tool " Magic wand».
B) With this magic wand, click on the white background that you want to remove. The picture takes the form (the background color has changed):
AT) Press a key on the keyboard Delete, the image takes the form (squares appear):
G) We can see that the white background has not been removed everywhere (see the picture above). Therefore, we repeat the operation: Magic wand - click on white background - Delete:
Step 5 Saving an image.
BUT) Select "Save As..." from the "File" menu:
B) In the window that appears, select FormatPNG(supports transparency, maximum quality), click on the button Save:
G) OK- Ready. Compare:
Good luck!
If you need to change or completely remove the background of an image, check out our article on how to remove the background in Photoshop.
Removing the background is one of the first difficulties that newcomers to the Photoshop editor face.
Let's take a look at some of the most popular and simple ways to help you remove the background of a photo.
Using the eraser
Photoshop has a number of tools whose task is to independently determine the boundaries of selected objects.
One such tool is the Magic Eraser. It is available in all versions of Photoshop.
This method is suitable if you need to remove the white background of the image. The eraser does not accept other background fills:
- On the toolbar, open the Rubber Band Tools tab. Then click on the "Magic Eraser" element;
- Now you should double-click the mouse pointer on a white background open image. The eraser will automatically detect all the borders of the background and main photo. Press the Delete key to delete the selected area. In some assemblies of the Photoshop editor, just click with the pointer and the selection will be deleted automatically.
It is worth noting that in earlier versions of the program, the magic eraser may not perfectly determine the boundaries of the object. In this case, after removing the background, it will be necessary to zoom in on the image by 200 percent and erase all errors with a regular eraser. In some cases, white pixels that are not part of the background may be removed.
As you can see, the eraser removed the part of the sword painted white and parts of the costume. This effect can be easily removed. Use the following methods:
- Open the Magic Eraser options panel. Check the Adjacent Pixels (or Contiguous) item. It should be ticked. The presence of this item in the settings of the magic eraser allows the tool to select and delete only those sets of pixels that are in contact with each other. Thus, other elements of the picture will remain intact. To apply the tool again, undo the previous result of removing the background and with the new eraser parameters, remove the background;
- Adjust the "Tolerance" parameter in the eraser settings. The location of this settings item can be seen above in Figure 3. The higher the value of this item, the more likely it is that the eraser will remove more of the detected background shades. Increase the tolerance parameter and gradually the eraser will stop highlighting the elements of the object in the picture. If for some reason this method fails to remove the border, try selecting the “Layer” window on the main menu bar. Then click on "Edge" and select "Unborder".
The result of removing the background using the described parameters:
Removing the background with the Magic Wand
Another popular background removal tool is the Magic Wand. This element can be found in most graphic editors, including in Photoshop.
To remove the background, first open the desired image as a new project in Photoshop. Wait for all toolbar items to load.
Now select the quick selection option. In the dropdown list, you see two available tools. Click on the "Magic Wand" as shown in Figure 5.
Now all actions will similar topics, if we used the Magic Eraser: just hover over the background part of the picture and click on it.
After selection, the background area will have clear borders. Press the Backspace button to remove the fragments found by the wand.
Important! Before you start removing the background with the Magic Wand, make sure you unlock the background layer. This is necessary to “detach” it from the main drawing. If the layer is not unlocked, the wand will not be able to select it correctly. As a result of deletion, white spots may remain, or a non-background part of the photo may be erased.
To unlock the background, go to the Layers panel. Click on the lock icon to set it to the "Open" position.
Only then use the Magic Wand tool.
If the Magic Eraser is often used to remove the white background from images, then the Magic Wand is more appropriate to use to remove the colored parts of the background.
Removing the background inside the image
Often users need to remove the background, which not only intersects with the boundaries of the main part of the picture, but is also inside it.
This method of background removal is useful if you are working with black and white images or scans of drawings.
As a result of removing the background, we should get a completely transparent image, with a clearly defined contour of the car.
First you need to create a copy of the blue channel of the picture. To do this, press the hot key combination Ctrl - L.
The Levels window will appear. Move the sliders until all the grays are as close to black as possible.
That is, all those elements of the contour that we want to leave should be painted black, and all parts of the background that will be deleted should become white.
Click on the channel copy thumbnail that was created at the very beginning. While clicking, hold down the Ctrl key.
As a result, a selection image will appear. Invert by pressing the keyboard shortcut Shift -Ctrl -I .
Now press the Backspace button on your keyboard to remove the extra layer. You can create a copy of it by pressing Ctrl -J .
After removing the background and adding a new texture instead, this is the result:
Adding another background
Typically, users remove the background to add one picture to another, or to replace the color/texture in the background of a photo.
Consider how you can change the background of an image that has had its previous back layer removed.
Add an image with a texture and an image with a background removed in one project:
Go to the layers panel and place the structure on top. Specify the overlay option as Eclipse or Multiply.
As you can see, the element appeared on top of the texture, however, some of the white parts of the image also took on the color of the texture:
Add an additional layer mask to the topmost layer:
After adding the mask, erase the remaining texture colors from the object using the Brush tool. The resulting result:
How to remove or cut background in Photoshop?
Our lesson will be based on a photo of an iron. The fact is that this item is easy to highlight, even a novice user can handle this task. After going through the basics, you will quickly understand how to cut out the background in Photoshop and in a picture with a person. It just takes a little more time.
In our example, the background is completely painted white. But in fact, it does not matter at all, it can be painted in any color. It can even be some kind of flowering meadow, it will not become more difficult to cut out the background from this. It is only necessary that the object be clear, with an easily defined contour. If the camera was out of focus at the time of shooting, then only then problems may arise with the selection.
Solving the problem of how to remove the background in Photoshop begins with a selection. But the first step is to unlock the current layer. Now it has the name "Background". Go to the Layers panel and double click on this name. A dialog box will pop up asking you to name the layer differently. Take advantage of this opportunity and click OK.
Now we need to select our iron. To do this, you can use one of two tools. The first is the "Magnetic Lasso". A good option, but it is more suitable for those objects that are difficult to separate from the background. Also, this tool is indispensable for highlighting a person. In our case, it is better to use the tool " Quick Selection". Select it and then adjust the brush size. Now you need to click on the object until it is fully selected. If you accidentally drove into an area with a background, then click on it while holding down the Shift key. Gradually, the item you selected will be highlighted.
But it's still not perfect. If now without hesitation to invert the selection and cut out the background, then the result will obviously not suit you. Along with the background, some pieces from the contour of the object of interest will disappear. Therefore, the selection should be made as accurately as possible. But it would take too much time to refine it manually. Fortunately the program Adobe Photoshop can independently adjust the selection to suit your needs. To do this, you just need to launch a special tool using the Refine Edge button. It is due to this function that you can quickly remove the background in Photoshop, spending a minimum of time on selection.
how to remove background in photoshop cs5
Pressing the button will suddenly turn the white background black. Don't be scared, it's just easier to keep track of changes. The dotted selection line will disappear, now it does not interfere with viewing the outline of the object. And after pressing the button, a dialog box will pop up. In it, you immediately need to check the box next to the "Smart radius" item. Below is a slider that adjusts the value of this radius. Set the value so that the outline of the object is without bald spots. Also in this dialog box, you can adjust the smoothing and feathering of the edges. This way you can achieve the perfect result.
When the result suits you - press the "OK" button. After that, you will return to the previous picture, when a dotted line runs across your object. Now we could copy it, move it, perform other actions ... But we need to remove the background in Photoshop cs5 (or later). To do this, you need to invert the selection. This is done very simply. Go to the "Select>Invert" path.
How to quickly remove or remove the background in Photoshop?
You could guess the next steps yourself. The background is now selected. To delete it, just press the Delete key. Immediately the background will become transparent. If you want to save just such an option, then you need to choose the format that supports the alpha channel. When you save the picture in JPEG format, the transparent area will turn white again. Ideal for saving such an image looks like PNG format.
We figured out how to remove the background in Photoshop. The simplicity of this action depends on the complexity of the contour of the main object. The easier it is to select, the faster you will remove the background.
How to cut an object from the background in Photoshop?
But sometimes complete removal background is not required. Sometimes you need to cut out some object from the Photoshop background, and this program has recently been able to do this. For example, you can remove some garbage from the image. With some skill, you can even get rid of telegraph poles and wires. Let's take as an example a photograph where traces from previously flying planes look objectionable.
To delete an unnecessary object, you must first select it. However, it is not necessary to select it as accurately as possible. On the contrary, precision is not needed here. Just use the lasso tool and select the object along with a piece of space surrounding it. But you need to remember that the object must be small in size. Otherwise, the program will not be able to understand how exactly to fill the empty area.
Once selected, press the Delete key. In the pop-up dialog box, pay attention to the "Use" item. Select "Content Aware" from the list provided. After that, click on the “OK” button. Then it remains only to go along the path "Select> Deselect" or use the keyboard shortcut Ctrl + D.
This concludes our lesson. Today you have learned how to quickly cut out the background, as well as remove only part of it. Now it will not be difficult for you to improve existing photos by getting rid of all kinds of garbage.
When working with graphic files often there is a need to remove the background around an object. This may be due to the insertion of this photo element into some kind of composition, or the desire to replace the background of the picture. In this regard, a popular question arises: "How to remove the background of a photo in Photoshop?"
Removing a plain background
Considering the issue of cleaning the background in a photo, it is worth separately considering how to quickly remove a background that has a uniform shade in Photoshop. This will avoid the extra work required when removing the multi-colored part of the picture.
Before deleting the necessary fragment of the photo, it must be selected. You can do it in dozens various ways, but if you want to highlight a certain shade of color, then in Photoshop there is a special tool that allows you to do this as quickly as possible. Selecting in the panel quick access menu item "Selection", you need to find the item "Color Range".
In the window that appears, it remains to select the "Pipette" tool and click on the background that you want to select. With the help of the sliders, all that remains is to adjust the selected area and click "Yes". The result of these actions will be the selection of all areas of the photo containing the selected color. To delete, you need to press the "Del" key on the keyboard. This method is one of the simplest, qualitatively solving the problem, how to remove the background in Photoshop.
"Magic" cleaning
An analogue of this background removal is the Eraser tool, which can perform this action even faster. To do this, just select the "Magic Eraser" and click once on the background - as a result, a checkerboard background will appear in its place, which symbolizes the presence of a transparent part of the photo. The disadvantage of this approach is the lack of control over the area that will be removed, as opposed to using a quick selection.
In order to have control over how to delete in Photoshop without affecting the rest of the photo, it's worth using another "magic" tool that works on a similar algorithm with an eraser, but performs a selection instead of deletion. There are two such tools, and they perform the same actions - and "Quick Selection". The only difference is that the "wand" requires step-by-step selection hue, and selection allows you to move the cursor over a large area of the picture at once.
Quick mask mode
The previous approaches are the answer to the question of how to remove the white background. In Photoshop, in addition to monochrome background, have the ability to clear and multi-color. Such a need may arise if a landscape that does not meet the requirements is depicted there. So how to remove the background in Photoshop?
There are also several ways to accurately remove the necessary part of the photo. The first one is to use the "Quick Mask". A mask is a special mechanism that allows the user to use the drawing tools to paint over the area that needs to be selected. To quickly switch to the "Quick Mask", just press the letter Q on the keyboard. Then, using a brush and an eraser, you need to paint over the part of the photo that should be deleted. Returning to normal mode by pressing the same key, we will notice that the required area of the picture will be selected - to delete it, it remains to press the already familiar Del key.
Removing the Background with Lasso
If the object around which you want to highlight the background has fairly clear boundaries, then there is another convenient way to remove the background in Photoshop. To do this, use the Lasso tool. It is provided to the user in three forms. The first has a similar name, "Lasso", - it allows you to arbitrarily draw lines for the future selection of an area. With its help, it is quite difficult to accurately select the necessary part, so the other two versions of the tool are more often used.
The next one is the "Linear Lasso" - with it you can draw a selection area using straight lines. This way you can draw a clear border, for example around buildings or angular geometric shapes.
For more complex elements, such as a silhouette of a person, you should use the "Magnetic Lasso". It, thanks to its algorithm of actions, moves along the contour of the object, defining it with the help of color differences - it is enough to approximately move the mouse cursor around the photo element.
As a result of using "Lasso", the element itself will be selected. In order to delete, the selection should be inverted by pressing the keyboard shortcut Ctrl + I. Then you can delete the background.
other methods
It is worth noting that, figuring out how to remove the background in Photoshop, you can find several more different ways. However, most of them are quite difficult to perform, allowing you to make the removal clearer. However, you can achieve a good result with simpler means, spending a little more perseverance and effort on it, and even, perhaps, saving a little time.
One of the best things about Photoshop is the ability to change the background. To replace the background in Photoshop, the old background must first be removed, but not everyone knows how to do this. Therefore, now we will talk about how to remove the background in Photoshop.
Method 1
The easiest way to remove the background is to use the background eraser (background Eraser). All that is required is to open the image: File> Open (File> Open). Duplicate the photo layer (Ctrl + J), and then delete the background. When everything is deleted, save: File> Save As (File>
Option 2
In the second option, we will use the Magic Wand tool. This option is suitable for cutting objects that have their own clear and even shape and the same color, as well as simply removing the white background in Photoshop. Open the file: File> Open (File> Open). Duplicate the layer with the photo (Ctrl + J), and then delete the very first layer. Grab the Magic Wand Tool (W). Parameter - Tolerance (Tolerance) set to 20 and select the desired color. The higher the color gamut, the lower the Tolerance value. Hold down the Shift key and, without releasing it, select the rest of the unwanted colors and delete them: Edit > Cut (Delete). All that is not removed, we wipe with the tool "Eraser". After the image has lost its background, save it: File> Save (File> Save as) and select the *.PNG format.
Option 3
This option is suitable for those types of images where there are a lot of multi-colored objects, because it will use the "Color Range". Open the file: File> Open (File> Open). Duplicate the layer with the photo (Ctrl + J), and then delete the very first layer. Choose Selection> Color range (Allotment> Color range) and with the Shift key pressed, select all unnecessary colors. All the colors you have selected should automatically be highlighted. Select the tool “Quick selection” (Quick selection) and the mode “Subtraction”. We wipe those objects that do not need to be deleted. Once the background is selected, delete it with the Delete key. When the image loses its background, save it.
Using the program "Photoshop", the background is very easy to remove. With our tips, you can easily cope with this task.
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