A Step-by-Step Guide About the Image Upscaling Process

A Step-by-Step Guide About the Image Upscaling Process

Picture quality is an essential aspect of the viewing experience. Image upscaling boosts the resolution of an image and can transform the image by improving its clarity, natural detail, and overall perceptual quality. The upscaled image can be used in various imaging applications, from digital photography to eCommerce marketing to 3D printing.

The key to successful upscaling is finding a balance between preserving the image's essential features while adding new details like the increased resolution to see minuscule but critical elements of the image on zooming in. This blog post will explore everything you want to know about the image upscaling process.

What are the different ways of upscaling an image?

Check out these unique & popular ways to upscale an image:

Nearest-neighbour interpolation: It is also known as the pixel replication method. One unique way to increase image size is by using nearest-neighbour interpolation, which replaces each pixel with the nearest pixel in the output. This technique can help preserve sharp image details, but it can also introduce an irregular quality to previously smooth images. 

Bicubic algorithms: The bicubic algorithm is famous for scaling images and videos for display. It does an excellent job of preserving fine detail better than the standard bilinear algorithm.

However, the bicubic algorithm can cause an overshoot, leading to clipping and an artifact. But it also increases acutance (apparent sharpness of a photographic or printed image), which is highly desirable for business applications. 

Lanczos resampling: Lanczos resampling can be helpful when the resampled image is intended for viewing the identification of detailed features or boundaries. When the resampled image is subsequently analyzed or processed, Lanczos resampling may increase the ability to detect edges and linear elements.

Box Sampling: One issue with bilinear, bicubic, and related algorithms is that they only sample a specific number of pixels. It can cause problems when downscaling below a certain threshold - for example, more than twice for all bi-sampling algorithms, and this can result in data loss and rough results.

The solution to this issue is box sampling. It involves considering the target pixel as a box on the original image and sampling all pixels inside it. It ensures that all input pixels contribute to the output.

AI Image upscaling: Though there are numerous algorithms to upscale an image, every discussed algorithm has shortcomings like artifacts, irregular quality, and a lack of fine details. An AI image upscaler allows individuals to enlarge images by 2X, 4X, and even 8X without losing image quality.

Backed by machine learning algorithms, artificial intelligence (AI) can easily and quickly improve the resolution of low-quality images to make them suitable for ultra-HD, 4K, and 8K displays. That makes it significantly faster and easier than traditional methods.


Benefits of upscaling an image

The image appears sharper & refined: Whenever an image is scaled up, it becomes blurry. It is because the individual pixels that make up the image are magnified when it is enlarged. Some of these pixels will be larger than others, and they will not be able to hold their details and those of the surrounding pixels.

It causes the image to become pixelated and blurry. To counter this, many images are "upscaled" before being displayed. Upscaling adds extra pixels to the image, which are used to ensure the image's fine details.

Improve image quality: An upscaled image improves image quality by increasing image resolution, thereby enhancing the natural aspects of the image. It increases the number of pixels in the image, which are tiny squares that together make up an image. It works by sampling the input image at a higher rate than the output image and then interpolating the colour values between those samples.

Increased resolution: An image with improved resolution means better clarity and high-resolution photos that help users see every little detail like facial details, hair, jewellery, natural scenes, digital art, logos, product catalogue images and more.

Enhanced details: Upscaling can also help bring out details in an image that may not have been visible before. It can be beneficial for photos or images that are low quality or grainy.

Transform low-quality images: Low-quality images are often pixelated and display noticeable artifacts, while high-resolution images are smooth and crystal clear. Users can quickly transform low-quality photos into high quality using upscale image applications.

Why are JPEG artifacts a problem & how to remove them using the Upscale.media app ?

JPEG artifacts are a problem for images because they degrade the quality of the image, making them look blurry and pixelated. It is especially noticeable on larger pictures or when the image is cropped or edited. 

The causes of JPEG artifacts include lossy compression, low bit rates, and bad image quality settings. JPEG artifacts can be seen as blockiness, posterization, and ringing. When these artifacts are present, they can severely detract from an image's aesthetics and impact its usability. In addition, artifacts can also cause compression losses, which may reduce the overall quality of an image.

About the Upscale.media app

With Upscale.media, anyone can now upscale and enhance images, whether you are a professional photographer or a novice. Upscale.media is the fastest, most intuitive, AI-powered image upscaling and enhancing App in the market today.

It can smoothly upscale and enhance the image without any technical knowledge. You get exceptional results when using Upscale.media for converting low-resolution images into high-resolution images, up to 4x.

Features of the Upscale.media app

You can convert low-quality images into high-quality images: You can convert low-quality images into high-quality ones by up to 400% (4X). You get astonishing images as output with their natural details intact.

Anyone can use it efficiently:

  • A novice user
  • A real estate agent
  • An artist
  • A real estate photographer
  • An e-commerce business owner 

Remove JPEG artifacts in one click: The popular App can remove them by reversing the compression to smooth the edges and bring them closer to the original photo. 

Powerful AI technology: It uses state-of-the-art AI technology to complete the upscaling process without losing the natural photo elements that can help the viewer form a positive opinion about your business. 

Download images in different formats: You can download images in JPG, JPEG, PNG, and WEBP formats. 

Download app on iOS/Android: You can easily download this App on your Android / iOS smartphones or visit its website to upscale your images.  

Steps to remove JPEG artifacts & boost image resolution using Upscale.media:

Step 1: Access the Upscale.media app from a desktop, Google Play Store and iOS store.

Home Page of Upscale.media

Step 2: Upload the image that needs upscaling.

2nd Step to Upload image

Step 3: Turn On the "Enhance Quality" button to remove JPEG artifacts and select the button Upscale to 4X to boost image quality by 400%.

3rd Step to On Enhance Mode

Step 4: Upscale.media removes JPEG artifacts in a few seconds.

Step 5: Save the enhanced image by clicking the "Download Image" button.


This blog has explored the image upscaling process in detail. We looked at image upscale, how different algorithms to upscale an image, its benefits, and how to remove JPEG artifacts using Upscale.media. If you want to see the upscaling process, please download the Upscale.media app today, and you will be happy to know how easy it is to improve the visual quality of your images.


What is upscaling method?

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Upscaling method refers to increasing the resolution of an image or video to a larger size. It typically involves algorithms and interpolation techniques to predict and generate additional pixels based on the existing information in the original, low-resolution content, resulting in an enhanced and visually improved output.

What is upscaling in image processing?

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In image processing, upscaling refers to the process of increasing the resolution and size of an image. It involves various techniques and algorithms to predict and generate additional pixels, aiming to improve the visual quality and sharpness of the image, making it suitable for larger displays or printing without losing too much detail.

What are the different types of upscaling?

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The different types of upscaling in image processing include interpolation and super-resolution. Interpolation methods estimate new pixel values based on existing ones, while super resolution employs advanced techniques, often deep learning algorithms, to generate high-resolution images with enhanced details.

Which upscaling is best?

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Upscale.media is considered one of the best upscalers available. Using advanced AI algorithms and deep learning techniques, Upscale.media delivers impressive results, enhancing images' resolution and visual quality, making it a top choice for those seeking a superior upscaling solution.

What are the upscaling methods for simulation?

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In simulation, upscaling methods refer to techniques used to predict fine-scale properties or behaviours from coarser-scale data. Common upscaling methods include homogenisation, multiscale modeling, and various data-driven approaches, which aim to bridge the gap between scales and provide accurate system representations at different resolutions.

What is upscaling in deep learning?

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In deep learning, upscaling refers to the process of increasing the resolution and size of an image using convolutional neural networks (CNNs) or other deep learning techniques. Upscaling models, often known as super-resolution models, are trained on a dataset of low-resolution and corresponding high-resolution image pairs to predict and generate additional pixels, resulting in higher-quality, visually improved, and sharper upscaled images.

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