Summary:
We will soon be showing you what a layer mask is, but before we get to that we want to show you the Eraser tools. Eraser tools allow you remove portions of the image such as an eraser on a pencil. The reasons why we are showing you this first is the eraser tools are permanent changes were masks are temporary removals. In this tutorial we will be discussing the eraser tool, background eraser tool, magic eraser tool. We left one of the most dangerous tools in Photoshop at the end of the tutorial (Magic Eraser Tool). Along the way you will learn tips and tricks on how to use these eraser tools more efficiently.
If you are unfamiliar with certain areas that are not covered in this tutorial, feel free check out other tutorials on our website. We have many different types of tutorials that can be downloaded (Video, PDF) or viewed online that will train you for free! Once you have the knowledge, feel free to come back and go through this tutorial again.
You will be using the Sky image which we have used in past tutorials. If you do not have this image, please scroll down to the “Click Picture To Download Supporting Files” and download the image. Please open the image DSC03562 in the Photoshop Program.
Make sure your background color is something that will stand out, such as a red. Create a new document 3072X2304 and make sure you change the “Background Contents” in the new to document to “Background Color”. Now open the sky image (if you do not have this image, scroll to the bottom of the post and Left click “Download Supporting Files”). First Left click the background layer in the sky image and duplicate the layer with CTRL-“J”. Then hide the background layer. Use the technique to copy a layer from one image file to another image file (see More Layers tutorial). Copy the red image layer to the sky image. Make sure the sky image is the top layer. Your layer palette should look similar to the image below.
Left click the active sky layer (on the example above it is called “Background Copy”). Think of the Eraser tool as an eraser on a pencil. Remember with a pencil as you erase there is no way to un-erase. At least in Photoshop we have the undo command (CTRL-“Z”).
The next tool we would like to explain is the “Background Eraser Tool”. Right click on the toolbox image and Left click “Background Eraser Tool” in the sub-menu. This tool is very similar to the eraser tool, except that when you are using it, it samples the color in the center of brush (you will notice a + in the middle of the brush and that is the location it samples). It tries to delete that color and will usually soften the edges.
A). Left click this option to continuously sample the color as you move you hold down the Left mouse button to erase. | |
B).
Left click this option to sample the color once, meaning that if you
hold down the Left mouse button and drag the background eraser, it will
only use the first color sample. | |
C).
Left click this option if you want to sample background color in the
toolbox. This is a nice feature, because if you only want to remove or
blend a specific color range, then use the eyedropper and sample that
color and then use “X” to swap the foreground to background. When this
option is used, if it cannot find the color, it will begin blending the
red layer with the sky photo. If it finds an exact match it will
completely erase the color. | |
D).
This drop down box (Limits:) tells Photoshop how far beyond to sample
the color. A useful option is to use “Find Edges” which try to locate
the edges of the object. | |
E). The “Tolerance” option tells Photoshop the color range to erase for similar colors. Left click this box to change the value. |
The “Magic Eraser Tool” is one of the most dangerous tools in the Photoshop program. Why is it so dangerous? In the past we have trained on the Magic Wand Tool (see tutorial Magical Colors And Selections). With the Magic Wand tool it selects portions of the image based off the color and you can set the tolerance. Think of the “Magic Eraser Tool” as using the functionality of the “Magic Wand”, but erasing the pixels. If you set the tolerance to high, you can erase way too much of your image. That is why it is a dangerous tool.
We are not a big fan of the eraser tools, because unless you are removing 1 pixel, it can become dangerous or very time consuming to undo (CTRL-“Z”) your errors. We will be explaining Photoshop Masks shortly. You will find once you learn how to Mask an image, you will never go back to the eraser tool (well unless you just want to remove 1 pixel). Most users will fall in love with the eraser tools and we wanted to show you the difference between the eraser tools and masking. Now you know the eraser tools and soon you will know how to Mask an image.
Well now you can check off from your list that you understand the “Eraser Tools”. You have just learned how to use the Eraser Tool, Background Eraser Tool and the Magic Eraser tool. One of the nice features of the Background Eraser Tool is to set the “Limits:” option to “Find Edges”. This feature actually does a fairly good job at finding the edges and erasing the pixels.
1). Out of all of the 3 eraser tools, what tool did we say is considered the most dangerous eraser tool?
A). Eraser Tool. | |
B). Background Eraser Tool. | |
C). Magic Eraser Tool. | |
D). None of the eraser tools can be dangerous. |
A). CTRL-“E”. | |
B). “E”. | |
C). ALT-“E”. | |
D). “Shift”-CTRL-“E”. |
A). The Eraser Tool allows you to switch between foreground/background removal by using the “Background/Foreground” colors. | |
B). The Eraser Tool will erase based off of the color sampling. | |
C). The Background Eraser Tool allows you to hide the pixels instead of permanently removing the pixels. | |
D). The Background Eraser Tool will erase based off of the color sampling. |
A). Tells Photoshop how far beyond to sample the color. | |
B). Used to identify the shades of the colors. | |
C). This tells Photoshop the color range to erase for similar colors. | |
D). When erasing, this tells Photoshop how much pressure to use on the eraser. |
A). CTRL-“Z”. | |
B). CTRL-“U”. | |
C). ALT-“Z”. | |
D). “U”. |
A). Hold the Left mouse button down over the image and drag. | |
B). Use the Right mouse button and drag. | |
C). Single Left click over the image. | |
D). A) & C). |
A). Edges. | |
B). Limit. | |
C). Brush Size. | |
D). Opacity. |
A). The layer below the sky picture was covered with red. | |
B). We set the color identifier to red instead of white. | |
C). In all of the erase tools, you set what color you want to erase with. | |
D). Red is the default color to show that an area (more than 1 pixel) is erased. |
A). It removes all pixels from the layer. | |
B). It causes everything on all layers to blend together. | |
C). If the tolerance is set to high it will permanently erase to much information. | |
D). It does a poor job at finding the edges (not the colors) of the selection. |
A). Eraser Tool. | |
B). Extract Eraser Tool. | |
C). Background Eraser Tool. | |
D). Magic Eraser Tool. |
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