使用人工智慧在電腦和行動裝置上銳化影像的終極指南

Ever had an image that looks dull and unlively? Maybe your photo lacks sharpness and crispness. But did you know? There are many image sharpener applications that you can find on the internet. You do not need expensive desktop solutions to sharpen your image. You will find many applications that can help you sharpen your image by searching on the internet. But you do not need to search anymore because we list the best image sharpening tools and teach you how to use them. Finish this article to learn how to freely sharpen images online or offline.

第 1 部分：如何免費線上銳利化影像（無需註冊）

儘管如此，仍有許多應用程序可以銳化圖像。建議您使用安全且最直接的工具。這就是為什麼我們搜索最好的圖像銳化器並為您列出它們。此外，我們將向您演示如何使用這些圖像銳化工具。

使用 FVC 免費影像升級器銳化圖片

FVC Free Image Upscaler is the best tool for sharpening an image. If you are searching for an AI sharpen image tool, then FVC Free Image Upscaler is the tool you are looking for. Additionally, it supports various image formats, like PNG, JPG, JPEG, and BMP. And using its AI (Artificial Intelligence) technology, you can enhance your image for up to 2x, 4x, 6x, and 8x magnification. What’s even fantastic about this online tool is that you can access it on all web browsers, including Google, Firefox, and Safari.

此外，許多初學者更喜歡使用此工具，因為它具有簡單的用戶界面。此外，雖然它是一個在線應用程序，但它的銳化過程很快，使用起來很方便。您還可以在將輸出圖像下載到設備之前對其進行預覽。因此，如果您想使用此工具來銳化圖像，請按照以下簡單說明進行操作。

如何使用 FVC Free Image Upscaler 銳化圖像：

Step 1. Open your browser, and search for FVC Free Image Upscaler on your search box. You can also click the link directly to their main page.

Step 2. Then, click the Upload Photo button on the main user interface to import the image you want to sharpen.

Step 3. Next, choose the magnification preset that you want for your image. You can select between 2x, 4x, 6x, and 8x magnification. And then, you will see the preview of your output.

Step 4. Lastly, to save your image output, click the Save button. Then, the application will automatically and quickly save your image on your computer folders.

就是這樣！就這麼簡單，您可以輕鬆增強圖像的模糊部分並為其添加清晰度。

使用 VanceAI 銳化影像

VanceAI is an online image sharpener that you can use if you want to sharpen your image or add crisps to it. Indeed when you add sharpness to your image, it will look better. That’s why if you want to sharpen your image quickly, VanceAI is the tool to use. In addition, you can use it for free on almost all web browsers, such as Google and Safari. Also, it automatically enhances the blur parts of your image in just a few clicks. With its easy-to-use interface, beginners can surely use this application. What’s more is that it supports the most common image formats, like JPG, JPEG, and PNG. However, when you sharpen your image using VanceAI it will leave a watermark on your image.

如何使用 VanceAI 銳利化模糊影像：

Step 1. On your browser, search VanceAI, then go to their main page. Then on the main user interface, click the Upload Image button to upload the image you want to sharpen.

Step 2. After uploading your image, click the Start to Process button at the lower right corner of the interface.

Step 3. Finally, you will see the preview output of your image. Then, click the Download Image button to download your sharpened image.

使用 PineTools 銳利化模糊影像

PineTools is another online sharpening app that you can easily use. With its simple user interface, beginners can also use this tool to fix picture quality. You can adjust your image's strength or sharpness using its slider option. Moreover, you can select the size of the convulsion mask of your image between 3x3 and 5x5. What’s even great about this online application is that you can access it on almost all web browsers, including Google and Safari. The drawback of PineTools is that it contains many ads that might distract you while you sharpen your image. Nonetheless, many beginners use this tool because it is convenient to use.

如何使用 PineTools 銳利化模糊影像

Step 1. First, search PineTools on your browser, and click the page that leads to its website. Then, click the Choose Files button on the first interface to upload the photo you want to sharpen.

Step 2. And then, on the Sharpen panel, move the mini box to the strength or sharpness you prefer for your image.

Step 3. Then, click the Sharpen button below the interface to sharpen your image. If you want to save your output image, click the image format you wish for, and it will be saved on your device.

第 2 部分：如何在 Windows/Mac 上銳化影像

如何在 Photoshop 中銳利化影像

Adobe Photoshop 是一款功能強大且廣泛使用的影像編輯軟體，全球用戶眾多。它既適合初學者，也適合專業人士，並包含眾多功能，使用戶能夠精準且富有創意地編輯圖像。從簡單的調整到複雜的設計，Photoshop 都能讓您將創意變成現實。其銳利化濾鏡可透過修改對比度和細節，使照片看起來更清晰銳利。在 Photoshop 中銳利化照片非常簡單，而且由於其先進的圖層和濾鏡功能，不會損壞原始圖片，非常適合社交媒體圖片、商業攝影和平面設計。

Step 1. Click Layers panel > Filter menu > Convert for Smart Filters.

Step 2. Choose Sharpen > Unsharp Mask under Filter.

Step 3. Adjust the the settings and click OK.

如何在 GIMP 中銳化影像

與上面介紹的銳化圖像應用程序不同，GIMP 是一個離線工具，如果您想銳化圖像或提高其質量，您可以使用它。此外，許多專業人士使用此工具來銳化圖像並改進它們。許多人將此工具視為 Adobe Photoshop 的替代品。它支持幾乎所有的圖像格式，如 PNG、JPG、JPEG、WebP 和 BMP。此外，它還具有許多可供您使用的編輯功能，包括照片修飾、更改構圖等。但這個應用程序的缺點是它的界面很難使用，初學者很難使用它。

不過，如果您是許多照片編輯應用程序的專業人士，您肯定會發現 GIMP 是銳化圖像的好工具。

如何在 GIMP 中銳化圖像：

Step 1. Download the GIMP image sharpener on your device. And on the software’s main interface, import your image by clicking File > Open.

Step 2. Then, create a duplicate layer by clicking the Layer > Duplicate button. You can also use the shortcut keys to duplicate layers. Click the Shift + Ctrl + D then the layer will be duplicated.

Step 3. Next, we will reduce noise by going to Filter > Enhance > Noise Reduction. Then, we will use the High Pass option to apply the sharpness we want. Go to Filters > Enhance > then select the High Pass option.

Step 4. And then, we will use the Vivid Light option to lighten our image and add details. Go to Option in the mode section and turn the Normal to Vivid Light.

Step 5. Create a duplicate layer once again for the final touches, then go to Filters > Enhance > Sharpen (Unsharp Mask). And then, you can adjust your image's Radius, Amount, and Threshold. Then, press Ctrl + S on your keyboard to save your output.

And that’s it! If you are one of the people who search for how to sharpen images with GIMP, then this is the guide for you. Just follow these steps to increase your image quality using GIMP.

三、如何在 iPhone/Android 上銳化圖片

Picwand AI 照片編輯器是一款功能強大的編輯器，可協助您利用 AI 編輯照片。您可以直接在 Picwand 官網上編輯，也可以下載到您的 iPhone 或 Android 裝置。它擁有眾多智慧功能，例如放大圖片、裁剪背景、提取物件和清晰圖片，所有這些都得益於先進的 AI 技術。使用 Picwand，您可以快速且準確地修復模糊影像、修飾舊照片或移除不需要的內容。其簡潔的介面使任何人都能輕鬆上手，無論經驗如何。

Step 1. Open the app and choose AI Image Upscaler.

Step 2. Upload an image and select the desired magnification factor.

Step 3. Tap the download icon to export.

第 4 部分。關於如何銳利化模糊影像的常見問題解答

結論

We expect we have answered your questions about how to sharpen images. There are 7 ways to do it nicely and quickly which are using Video Converter Ultimate, PhotoShop, VanceAI and so on. Also, if you seeking a totally free tool you can move your sight on FVC Free Image Upscaler. It’s a 100% free online tool.