Photoshop 的众多简单图像修改(simple image modifications)之一是它使用图层，可以更轻松地调整、删除和组合图像元素。
Photoshop中的图层就像相互堆叠的独立平板玻璃。每个都包含不同的内容。
如何在 Photoshop 中调整图像层的大小(How To Resize An Image Layer In Photoshop)
您可以在Photoshop(Photoshop)中调整、重新排列和合并图像层以获得所需的效果。 首先(Start)将图像上传到Photoshop。从屏幕的右下角选择要调整大小的图层。
如果您的图层面板未显示，请转到顶部导航中的Windows，然后单击图层(Layers )将其打开。
从顶部栏中导航到Edit并单击Free Transform。
您将看到正在编辑的图像周围的调整大小框。
要调整图层大小，请单击并按住键盘上的 shift 键，然后将图像拖动到您想要的大小。按住 shift 键调整图像大小而不扭曲其比例。
按百分比调整图像大小(Resize Images By Percentage)
您可以使用顶部栏中的高度和宽度百分比测量值，而不是使用图像周围的框来调整它的大小。
像以前一样在屏幕的右下角选择图像层。
使用编辑(Edit)下的顶部栏导航单击自由变换。(Free Transform. )查看顶部导航正下方的栏。
您可以更改菜单中的宽度和高度，而不是拖动图像周围的框来调整它的大小。要保持纵横比，请单击上面黄色框中的图标，这样您就不会扭曲图像。
要保存更改，请按键盘上的Enter或单击导航中的复选标记。
如何通过混合模式在 Photoshop 中合并图层(How To Merge Layers In Photoshop By Blending Modes)
在此示例中，我们希望将两张图像合并为一张。我们从雪景和野牛的照片开始。
单击左侧导航工具栏中的移动工具。(Move )然后将景观拖到右侧，使其覆盖野牛。
在右侧的“图层”面板中，单击“正常(Normal)”旁边的下拉菜单。尝试不同的混合模式，看看哪个看起来最好。
以下是柔光、叠加(Soft Light, Overlay)和屏幕(Screen)混合模式在合并图像上的一些示例。
柔光(Soft Light)
覆盖(Overlay)
屏幕(Screen)
要保存图像，请单击顶部栏导航中的从文件(File)另存为。(Save As)将其保存为Photoshop格式。选中图层( Layers)以将可编辑图层保留在文件的工作版本中。
如果您想共享图像的副本，请将另一个保存为 .jpg。
如何将图层合并为单个图像(How To Merge Layers Into a Single Image)
在此示例中，我们将使用三层：图像、徽标和调整后的亮度层。
要将它们全部合并在一起，首先，确保所有三层都是可见的。请参阅下面以黄色勾勒的图标。
右键单击(Right-click)任一图层并选择Merge Visible。
然后以任何可用格式保存您的图像。如果您想重新访问您的项目，请记住(Remember)保存选中图层的(Layers)Photoshop版本。
要合并特定图层而不是所有图层，请按住Windows上的(Windows)Control键或Mac上的(Mac)Command键。要选择要合并的图层，请单击每个图层。右键单击选择的任何图像，选择合并图层(Merge Layers)，然后保存图像。
合并图层以创建纹理图像(Merge Layers To Create a Textured Image)
(Layer)Photoshop中的(Photoshop)图层混合模式是一种将两个图像合并在一起以添加纹理外观的快速方法。
首先打开一张照片。转到文件(File)>打开(Open)>选择(Select)要使用的图像>单击打开(Open)。
下一步是通过转到File > Place Embedded添加图像，从您的计算机中选择一张图片，然后单击Place。
我们将选择具有纹理的图像。要保存展示位置，请单击顶部导航栏上的复选标记。
查看右侧的图层面板。因为我们通过Place Embed添加了第二张图像，所以Photoshop自动为纹理图像创建了一个新图层。
确保(Make)选择新的纹理层，如上面的屏幕截图所示。要应用图层混合模式，请打开图层面板顶部的下拉菜单。您将看到几种可供选择的混合模式。
单击(Click)任何选项以查看每个滤镜在Photoshop 背景图像(Photoshop background image)上的外观。
Photoshop将纹理层中的颜色和色调与其下方背景级别的颜色和色调混合。在下面的屏幕截图中查看乘法(Multiply)选项的示例。
单击(Click)下拉菜单中的每种混合模式，直到找到您喜欢的组合。或者您可以尝试更快的方法或快捷方式来尝试不同的混合模式。
保持纹理模式突出显示。通过从工具面板中选择移动工具来(Move tool)循环选择。(Cycle)在按住Shift 键的同时，(Shift Key, )按加号键(Plus Key)。每次按下并释放加号键时，菜单中的下一个混合模式就会应用于您的图像。
当您使用快捷方式滚动选项时，搅拌机模式上的名称也会改变。以下(Below)是不同搅拌机模式的一些示例。
要返回菜单选项，请按住Shift 键(Shift Key)并按减号(Minus) 键。(Key.)
我们将使用叠加(Overlay)选项。如果您想要不同的外观，您可以通过调整滑块来更改纹理层的不透明度。它位于混合模式菜单的右侧。
如果您喜欢混合结果的外观，请导航至File > Save As。将图像另存为Photoshop或PSD文件，或任何您想要的格式。如果您希望将来能够编辑此项目， 请记住保存图层。(Remember)
如何合并两个图像层(How To Merge Two Image Layers)
您还可以使用图层混合模式将任意两个图像的内容混合或合并在一起。返回文件(File)>打开(Open)，导航到计算机上的图像，然后单击打开。(Open.)
让我们在上面的图像中添加另一张图像。转到File > Place Embedded。选择一张图片并单击放置(Place)。
单击(Click)顶部导航中的复选标记以保存嵌入的照片。现在，将混合模式应用于顶层。
滚动(Scroll)菜单或使用上述快捷方式找到您喜欢的混合模式。下面的屏幕截图显示了图像在变亮混合(Lighten Blend)模式下的样子。
要保存图像，请转到文件(File)>另存为(Save As)> Photoshop文件或您选择的文件类型。
将两张照片组合在一起(Combine Two Photos Together)
首先(Start)创建一个新文档。打开 Photoshop(Open Photoshop)，选择“文件(File )” > “新建”(New ) > “选择文档类型(Select Document Type)”，将“背景内容(Background Contents)”设置为“透明(Transparent)”，然后单击“创建(Create)” 。
将(Drag)图像从您的计算机拖到Photoshop中。通过单击并抓住边缘周围的手柄来调整图片大小以使其适合窗口。这将保持图像的纵横比并且不会扭曲它。
按Enter继续。将(Drag)另一个图像拖到Photoshop窗口中。在右侧的“图层”面板中查看每个图像现在都是一个单独的图层。(Layers)
您可以通过在“图层(Layers)”面板中向上或向下拖动图层来将图像移动到前面或后面。要显示或隐藏图像，请单击图层旁边的眼睛图标将其隐藏。要使其可见，请再次单击它。
我们将合并这两个图像，使其看起来像汽车正在驶入山中。首先(Start)从左侧栏导航中获取快速选择工具。(Quick Select)
按住快速选择(Quick Select)工具并将其拖动到原始图像中汽车行驶位置的顶部。
现在单击顶部栏中选择(Selection)下的反向。(Inverse )选择此区域后，我们将通过单击位于右侧面板底部的图标来创建蒙版。
这辆车现在看起来像是在开进山里。
Photoshop的一个强大功能是能够调整大小、合并和组合图片以创建富有想象力的合成。
我们只触及了 Photoshop 强大功能的皮毛，以及如何使用它们来创建出色的图像。
How To Resize, Combine, & Merge Layers In Photoshop
One of Photoshop’s many simple image modifications is its use of layers that make it easier to adjust, remove, and combine image elements.
Layers in Photoshop are like separate flat panes of glass stacked on top of each other. Each contains a different piece of content.
How To Resize An Image Layer In Photoshop
You can resize, rearrange, and merge image layers in Photoshop to get the effect you desire. Start by uploading an image to Photoshop. Choose the layer you want to resize from the lower right-hand corner of the screen.
If your layers panel isn’t showing, go to Windows in the top navigation and click on Layers to open it.
Navigate to Edit from the top bar and click on Free Transform.
You will see the resize frame around the image you are editing.
To resize the layer, click and hold down the shift key on your keyboard and drag the image to the size you want. Holding down the shift key resizes the image without distorting its proportions.
Resize Images By Percentage
Instead of using the box around your image to resize it, you can use the height and width percentage measurements from the top bar.
Select the image layer as you did before in the bottom right-hand corner of the screen.
Use the top bar navigation under Edit to click on Free Transform. Look at the bar directly under the top navigation.
You can change the width and height in the menu rather than dragging the box around an image to resize it. To maintain the aspect ratio, click the icon in the yellow box above, so you don’t distort your image.
To save your changes, press Enter on your keyboard or click the check mark in the navigation.
How To Merge Layers In Photoshop By Blending Modes
In this example, we want to merge two images into one. We are starting with photos of a snowy landscape and a bison.
Click the Move tool from the toolbar on the left-side navigation. Then drag the landscape over to the right so that it covers the bison.
From the Layers’ panel on the right-hand side, click the drop-down menu next to Normal. Try out different blend modes to see which one looks best.
Below are some examples of how the Soft Light, Overlay, and Screen blend modes look on your merged image.
Soft Light
Overlay
Screen
To save your image, click Save As from File in the top bar navigation. Save it in the Photoshop format. Leave Layers checked in order to retain your editable layers in the working version of your file.
If you want to share a copy of your image, save another as a .jpg.
How To Merge Layers Into a Single Image
In this example, we will use three layers: an image, a logo, and an adjusted brightness layer.
To merge them all together, first, make sure all three layers are visible. See the icon outlined in yellow below.
Right-click on any one of the layers and select Merge Visible.
Then save your image in any of the available formats. Remember to save a Photoshop version with Layers checked if you want to revisit your project.
To merge specific layers and not all of them, hold down the Control key on Windows or the Command key on Mac. To select the layers you want to merge, click on each one. Right-click any of the images chosen, select Merge Layers, and save the image.
Merge Layers To Create a Textured Image
Layer blend modes in Photoshop are a quick way to merge two images together to add a textured look.
Start by opening a photo. Go to File > Open > Select the image you want to use > click Open.
The next step is to add an image by going to File > Place Embedded, select a picture from your computer and click Place.
We will choose an image with a texture. To save the placement, click the checkmark on the top bar navigation.
Look at the layers panel on the right-hand side. Because we added the second image via Place Embed, Photoshop automatically made a new layer for the textured image.
Make sure to select the new textured layer as in the screenshot above. To apply a layer blend mode, open the drop-down menu at the top of the layer panel. You will see several blend modes from which to choose.
Click on any of the options to see what each filter will look like on your Photoshop background image.
Photoshop blends the color and tones in the textured layer with those on the background level below it. See an example of what the Multiply option looks like in the screenshot below.
Click each blend mode in the drop-down menu until you find a combination you like. Or you can try a quicker method or shortcut to try out different blend modes.
Keep the texture mode highlighted. Cycle through the choices by selecting the Move tool from the tools panel. While holding down the Shift Key, press the Plus Key. Each time you press and release the plus key, the next blend mode in the menu is applied to your image.
While you are scrolling through the options using the shortcut, the names on the blender mode will change as well. Below are some examples of different blender modes.
To go back up the menu options, hold down the Shift Key and press the Minus Key.
We will use the Overlay option. If you want a different look, you can change the opacity of the textured layer by adjusting the slider. It is located on the right-side of the blend mode menu.
When you like the look of the blended results, navigate to File > Save As. Save the image as a Photoshop or PSD file, or any format you want. Remember to save the layers if you want to be able to edit this project in the future.
How To Merge Two Image Layers
You can also use layer blend modes to blend or merge the content of any two images together. Go back to File > Open, navigate to an image on your computer, and click Open.
Let’s add another image to the one above. Go to File > Place Embedded. Select a picture and click Place.
Click the checkmark from the top navigation to save your embedded photo. Now, apply a blend mode to the top layer.
Scroll through the menu or use the shortcut described above to find a blend mode you like. The screenshot below shows what the image looks like with the Lighten Blend Mode.
To save your image, go to File > Save As > Photoshop file or a file type of your choice.
Combine Two Photos Together
Start by creating a new document. Open Photoshop, choose File > New > Select Document Type, set Background Contents to Transparent, and click Create.
Drag an image from your computer into Photoshop. Resize the picture to make it fit the window by clicking and grabbing the handles around the edges. This will maintain the aspect ratio of your image and not distort it.
Press Enter to continue. Drag another image into the Photoshop window. Look in the Layers panel on the right-side to see that each image is now a separate layer.
You can move images in front or behind by dragging a layer up or down in the Layers panel. To show or hide images, click the eye icon next to the layer to hide it. To make it visible, click it again.
We will merge the two images to make it look like the car is driving into the mountain. Start by grabbing the Quick Select tool from the left bar navigation.
Hold down the Quick Select tool and drag it across the top part of where the car is driving in the original image.
Now click on Inverse under Selection in the top bar. With this area selected, we are going to create a mask by clicking on the icon located at the bottom of the right-hand side panel.
The car now looks like it is driving into the mountains.
A powerful feature of Photoshop is the ability to resize, merge, and combine pictures to create imaginative composites.
We have only scratched the surface of Photoshop’s robust features and how you can use them to create awesome images.
