无论(Whether)是出于美观还是可访问性的原因，使用正确的工具在数字图像上反转颜色都很容易。这是如何做到的。
自从摄影被发现以来，人们一直在反转照片中的颜色。但在当时，颜色反转意味着在黑暗的房间里使用各种化学品和底片。今天有了数码摄影(photography)和可用的技术，反转颜色要容易得多。
在本文中，我们将介绍几种颜色反转方法。您将学习使用Photoshop(Photoshop)、在线网络工具和手机应用程序来反转图像的颜色。继续阅读并找出您可能想要反转图片颜色的原因。
什么是颜色反转？
图像中的颜色(Color)反转意味着将颜色翻转到色轮上的相反颜色。绿色会变成洋红色，红色会变成蓝色，黄色会变成紫色。每个像素的亮度也会转换为其对应的值。
发明色轮是为了显示颜色之间的关系。它最初是由艾萨克·牛顿 (Isaac Newton(Isaac Newton) ) 为他的光学实验而创建的。从那时起，它已经更新以满足科学家、设计师、艺术家、摄影师、摄像师和其他人的需求。
为了更好地了解，下面是色轮的样子：
您可能想知道是否可以对黑白照片进行颜色反转，因为它们没有颜色。答案是肯定的，但在这种情况下，颜色反转意味着亮区变暗，暗区变亮。在彩色图像中，颜色与其互补色相反。没有色彩饱和度或亮度损失。
为什么您可能(Might)想要反转照片中
的颜色(Colors)
您可能想要反转照片颜色的原因有很多。有些是纯粹的审美。人们只是觉得倒色的图片看起来很有趣。但是，颜色反转也可以帮助看到不同颜色的人。
色盲(Color)的人也发现颜色反转很有用。色盲(Color)并不意味着一个人看到的世界是黑白的。有不同类型的色盲，患有这种疾病的人经常看到不同的颜色。反转颜色可以帮助他们看到他们认为没有的颜色。
颜色(Color)反转不仅会影响图像的颜色，还会增加对比度并增强细节。这可能对视力受损的人有用。由于它还会使亮光部分变暗，因此可以通过消除蓝光来减轻眼睛疲劳。
如何使用 PC
反转图片中的颜色(Invert Colors)
有许多免费或付费的编辑工具可用于反转图像颜色。让我们检查其中的一些，看看如何在Windows和Mac上进行操作。
Adobe Photoshop
尽管Photoshop是一个非常复杂的图像编辑(image editing)工具，但在init 中反转颜色就像使用一个键盘快捷键一样简单。只需在(Simply)Photoshop中打开您想要的图片，然后您可以继续在Windows上按(Windows)Ctrl + I或在Mac上按(Mac)Cmd + I ，整张照片将被反转。
因为Photoshop会破坏您的原始照片，并且如果您改变主意将无法返回到它，您应该保存原始照片并制作副本。反转(Invert)新图层上的颜色。这是如何做到这一点的。但首先，如果您只想对图片的一部分进行反转，请使用任何选择工具进行选择，然后创建一个反转图层。
为此，请在“图层(Layers)”面板底部找到“创建新填充(Create New Fill)或调整图层”。(Adjustment Layer)单击后会出现一个下拉菜单。选择 Invert(Choose Invert)，Photoshop会自动在您的原始照片上
添加一个Invert Layer 。
当您对结果感到满意并且您已经达到了您想要的效果时，您可以将您的图像保存为 jpg 或PNG文件。
微软油漆
MS Paint是Microsoft开发的图像编辑器，适用于Windows 10和 11。它具有颜色反转的集成选项。只需(Simply)转到File然后Open或按Ctrl + O即可打开图像。现在按Ctrl + A选择整个图片，右键单击图像，然后选择反转(Invert)颜色。
预览应用
macOS 用户可以使用Preview App反转图像中的颜色。这是在Mac(Mac)计算机上查看图像的默认应用程序，要在其中打开图像，只需双击它即可。打开图像后，转到工具(Tools)并选择调整颜色(Adjust Color)。您将在颜色调整面板上看到白点和黑点滑块。要反转颜色，请将白点拖到左侧，将暗点拖到右侧。一旦您对图片的结果感到满意，请保存它。
免费软件
那里有很多免费的图像编辑工具，其中大多数都能够反转图片的颜色。有些更高级，例如GIMP。它将允许您使用图层并反转图像部分的颜色。其他的则过于简单，只需单击几下鼠标即可反转图像。这里有几个简单的：
油漆网
Paint.NET是一个免费的图像编辑软件，具有很多功能。它使反转颜色变得非常简单。只需转到Adjustments，然后Invert Colors。您也可以简单地按Ctrl + Shift + I 键盘快捷键来使用反转颜色选项。
IrfanView
这是一款越来越受欢迎的图像编辑软件。它的颜色反转功能被称为负片(Negative)，因为它模仿了旧胶片彩色底片的外观。在IrfanView(IrfanView)中打开图片后，转到Image，然后选择Negative（反转图像）和 All Channels。
摄影景观
PhotoScape是一款著名的图像编辑器，因其众多功能而广受欢迎，例如动画GIF创建、各种效果、滤镜和编辑选项。图像反转就像在(Image)PhotoScape的编辑器选项卡中找到一个反转负效果(Invert Negative Effect)按钮一样简单。您还可以在此处找到其他效果，例如棕褐色、灰度或黑白。您只需单击一下即可快速反转颜色。
免费在线编辑工具
如果您不想下载和安装软件来反转图片的颜色，您可以选择通过众多免费在线工具之一来实现。它们是初学者的绝佳选择。通常，在线工具使用起来很简单，只需点击几下，您就可以免费转换图像。以下是最受欢迎的在线编辑工具列表。
Pixlr E
最受欢迎的在线编辑器之一是Pixlr E。只需单击几下，它就可以让您反转颜色。打开您的图像，或从其丰富的图库中选择一张。导航(Navigate)到调整(Adjustments)，然后在菜单栏的底部几乎找到反转(Invert)，就是这样。请注意，Pixlr X版本删除了反转颜色的选项，因此请确保您使用Pixlr E。
像素化
另一个免费的在线编辑器，可让您毫不费力地反转您的图片。上传图像文件或从Pixelied提供的库存库中选择一个。然后只需单击编辑器顶部工具栏上的图像(Image) 效果(Effects)和滤镜。(Filters)转到Filters，然后找到Invert。
松木工具
PineTools不是一个简单的在线编辑器。它是一组工具，可帮助您编辑图片和视频、压缩或转换文件等等。要使用PineTools反转颜色，请转到图像(Images)，找到反转颜色(Invert Colors)工具，然后单击它。它会要求你现在上传你的图片。选择图片后，只需按屏幕底部的绿色反转按钮，就可以了。(Invert)您现在可以直接从PineTools保存您的图像或将其直接发布到众多社交网络之一。
如何在智能手机上
反转(Invert Colors)图片(Pictures)中的颜色(Your)
您可以在智能手机上安装不同的应用程序，以快速反转图片的颜色。不同(Different)的应用程序适用于Android和 iOS。选择适合您需求的那一款。
摄影指导
PhotoDirector 是手机上最好的整体免费照片编辑器。它还可以制作照片拼贴画。至于颜色反转，您可以很好地控制它，因为您可以使用颜色曲线单独更改红色、绿色和蓝色 ( RGB ) 通道。此应用程序适用于Android和 iPhone，并且有 PC 版本。
消极的我
Negative Me 是一款只有一个功能的简单应用。只需单击一下，它就会将图片从正片转换为负片，反之亦然。你甚至不需要做任何特别的事情。只需(Just)在应用程序中打开您的照片，它就会自动转换。该应用程序还具有内置摄像头，因此您可以从内部拍摄新照片。您可以从Apple商店获得 Negative Me 并在您的手机或 iPad 上运行它。
负面形象
Negative Image是与 Negative Me 类似的应用程序，但它仅适用于Android设备。它可以让您通过简单的点击将照片转换为底片，但它也允许您仅转换照片的选择。它还有一个内置摄像头，但您也可以上传一些旧照片。Negative Image(Image)最好的部分是您可以使用它将旧胶片底片转换为真实照片。只需(Just)使用手机的相机拍摄底片照片并通过应用程序运行即可。
How to Invert the Colors on a Picture (and Why You Might Want To)
Whether for cosmetic or accessibility reasons, inverting cоlorѕ оn a digitаl image іs easy with the right tools. Here’s how to do it.
People have been inverting the colors in photographs ever since photography was discovered. But back then, color inversion meant working with various chemicals and film negatives in a dark room. Today with digital photography and the technology available, it is much easier to invert the colors.
In this article, we’ll look at several color inversion methods. You’ll learn to invert an image’s colors using Photoshop, online web tools, and phone apps. Read on and find out why you might want to invert the colors on a picture.
What Is Color Inversion?
Color inversion in an image means flipping the colors to their opposites on the color wheel. The green will become magenta, red will become blue, and yellow will turn violet. The brightness of each pixel will also convert to its corresponding value.
The color wheel was invented to show the relationship between the colors. It was first created by Isaac Newton for his experiments in optics. Since then, it has been updated to suit the needs of scientists, designers, artists, photographers, videographers, and others.
To have a better idea, here is what a color wheel looks like:
You might wonder if it is possible to do the color inversion on black and white photos since they have no color. The answer is yes, but in this case, color inversion means that the light areas become dark, and the dark areas become light. In colored images, the colors are inverted to their complementaries. There is no loss of color saturation or brightness.
Why You Might Want to Invert the Colors in Your Photos
There are different reasons why you might want to invert colors on your photos. Some are purely aesthetical. People simply find pictures with inverted colors interesting and fun to look at. However, color inversion can also help people who see colors differently.
Color blind people also find color inversion useful. Color blindness doesn’t mean that a person sees the world in black and white. There are different types of color blindness, and people with this condition often see colors differently. Inverting the colors may help them see colors where they thought there were none.
Color inversion not only affects the colors of an image but also increases the contrast and enhances the details. This might be useful for people whose vision is impaired. Since it also darkens the light parts, it can reduce eye strain by eliminating blue light.
How to Invert Colors in a Picture by Using a PC
There are many editing tools, free or paid, that you can use to invert image color. Let’s check some of them and see how to do it on Windows and Mac.
Adobe Photoshop
Although Photoshop is a very complex tool for image editing, inverting colors init is as simple as using one keyboard shortcut. Simply open a picture you want in Photoshop, and you can go on and press Ctrl + I on Windows or Cmd + I on Mac, and the whole photo will be inverted.
Because Photoshop will destroy your original photo, and you won’t be able to return to it if you change your mind, you should save the original and work on a copy. Invert the colors on a new layer. Here is how to do that. But first, if you want to make an inversion of just part of the picture, make a selection by using any of the selection tools, and then create an inversion layer.
To do this, find Create New Fill or Adjustment Layer at the bottom of the Layers panel. A drop-down menu will appear once you click on it. Choose Invert, and Photoshop will automatically add an Invert Layer on top of your original photo.
When satisfied with the results and you have achieved what you wanted, you can save your image as a jpg or PNG file.
Microsoft Paint
MS Paint is an image editor developed by Microsoft and is available for Windows 10 and 11. It has an integrated option for color inversion. Simply open an image either by going to File then Open or by pressing Ctrl + O. Now select the whole picture by pressing Ctrl + A, right-click on the image, and select Invert color.
Preview App
macOS users can invert the colors in their images by using Preview App. This is the default app for image viewing on Mac computers, and to open an image in it, simply double-click on it. Once your image is open, go to Tools and select Adjust Color. You will see white and black point sliders on the color adjustment panel. To invert the colors drag the white point to the left and the dark point to the right. Once you are satisfied with how your picture turned out, save it.
Free Software
There are plenty of free image editing tools out there, and most of them are capable of inverting the colors of your picture. Some are more advanced, like GIMP. It will allow you to work with layers and invert the colors on parts of the image. Others are simplistic and will invert the image with a few mouse clicks. Here are a few simple ones:
Paint.Net
Paint.NET is a free image editing software with a lot of features. It makes inverting the colors very simple. All it takes is to go to Adjustments and then Invert Colors. You can also simply press Ctrl + Shift + I keyboard shortcut to use the invert color option.
IrfanView
This is an image editing software that is growing in popularity. Its feature for color inversion is called Negative because it mimics the looks of the old film color negatives. Once you open a picture in IrfanView, go to the Image, then choose Negative (invert image) and All Channels.
PhotoScape
A well-known image editor, PhotoScape is very popular for its many features, such as animated GIF creation, various effects, filters, and editing options. Image inversion is as simple as finding an Invert Negative Effect button in the editor tab of the PhotoScape. This is where you can find other effects, too, such as sepia, grayscale, or black and white. You will quickly invert colors with just one click.
Free Online Editing Tools
If you don’t want to download and install software to invert the colors on your pictures, you can simply opt to do it via one of many free online tools. They are an excellent choice for beginners. Typically, online tools are straightforward to use, and in just a few clicks, you can transform your images without any cost. Here is a list of the most popular online editing tools.
Pixlr E
One of the most popular online editors is Pixlr E. It will let you invert the colors with just a few clicks. Open your image, or choose one from its rich stock library. Navigate to Adjustments, and find Invert almost at the bottom of the menu bar, and that is it. Note that the Pixlr X version removed the option to invert colors, so make sure you use Pixlr E.
Pixelied
Another free online editor that will let you effortlessly invert your picture. Either upload an image file or choose one from the stock library offered by Pixelied. Then simply click on Image Effects and Filters on the top toolbar of the editor. Go to Filters, and find Invert.
PineTools
PineTools is not a simple online editor. It’s a collection of tools that will help you edit pictures and videos, compress or convert files, and many more. To invert colors with PineTools, go to Images, find the Invert Colors tool, and click on it. It will ask you to upload your image now. Once you choose your picture, simply press the green Invert button at the bottom of the screen, and that’s it. You can now save your image or post it directly to one of many social networks directly from PineTools.
How to Invert Colors in Your Pictures on Smartphones
There are different apps that you can install on your smartphone to invert colors on your pictures quickly. Different apps work on Android and iOS. Choose the one that will suit your needs.
PhotoDirector
PhotoDirector is the best overall free photo editor for mobile phones. It can also make photo collages. As for the color inversion, it will give you great control over it as you can use the color curve to change red, green, and blue (RGB) channels individually. This app works on both Android and iPhone, and it has a PC version.
Negative Me
Negative Me is a simple app with only one function. With just one click, it will convert the picture from positive to negative and vice versa. You don’t even have to do anything special. Just open your photo in the app, and it will automatically get converted. The app also has a built-in camera so you can take a new photo from within. You can get Negative Me from the Apple store and run it on your phone or iPad.
Negative Image
Negative Image is a similar app to Negative Me, but it works only on Android devices. It will let you convert your photos to negatives with a simple click, but it will also allow you to convert only a selection of a photo. It also has a built-in camera, but you can also upload some of your older photos. The best part of Negative Image is that you can use it to convert old film negatives into real photos. Just use your phone’s camera to snap a picture of the negatives and run it through the app.
