Frequently Asked Questions

Q

What is cutout / background removal?

The subject (foreground) in the picture is separated from the background in order to remove / replace the background, use different picture effects and filter effects on the background and the subject, or insert other elements between the subject and the background such as product, text, and more. For example, the shooting of science fiction movies, such as the Avengers series, uses a lot of green screens to shoot. The purpose is to make it easy to superimpose backgrounds and special effects by removing the green background. For ordinary people, this will undoubtedly take a lot of time and energy. The development of artificial intelligence has brought you an unprecedented cutout experience.

Q

What are the application scenarios for matting / removing the background?

抠图/Cutout / Background has a large number of applications in photo processing, UI design, and visual design.  Examples include: E-commerce main image on product details page, promotion poster banner, express picture, App cover Corporate office product promotion poster, sales campaign report, employee badge, greetings cards, Offline takeaways, education, beauty, fitness, convenience stores, homestays, auto repair display stands, roll-ups, coupons Personal ID photo production, ID photo change background color, job resume, Vlog, photo album production Entertainment picture background effects, funny star photo, ghost animal material, change of attractions

Q

How the artificial intelligence cutout / background removal works?

PicUP.AI uses the most advanced artificial intelligence deep learning technology-Deep Convolutional Neural Networks, adopts a multi-stage high-throughput automatic encoding infrastructure for image semantic segmentation, and adds foreground objects that predict the image transparent channel (Alpha Matting). Image semantic segmentation is the automatic segmentation of the object area from the image by the machine and the recognition of its content. When processing an image, it is down to the pixel level, that is, the method assigns each pixel in the image to an object category. In this way, artificial intelligence can identify the subject and the background, so that they can be separated.

Q

Is AI matting simple to use?

One-click, just one-click matting, after uploading the image with one click, you can get the final matting result. The online matting tools of other websites basically need to delineate the subject and background, which consumes a lot of time, and the accuracy cannot be guaranteed. At PicUP.AI, it's super easy with one click. You don't need any professional knowledge. You don’t need know how to use photoshop (PS). And you can use our tool even if you don't understand image technology.

Q

Does it support batch matting?

After logging in, you can upload in batches. It helps you save more time. Don't forget, there are buttons for batch download below the thumbnail.

Q

Is there an API for online portrait matting?

Yes!API entry here. API calls support mainstream programming languages, including command line, python, php, Java. If you have more needs, please contact us, the entrance is on the left.

Q

Is the technique of online portrait matting particularly difficult?

Yes, everyone who has used PhotoShop knows it well, especially with flying hair, or when the colors of the background and human skin and/or clothing accessories are very similar, or there is narrow background between the arms and legs, etc. It is tedious and time consuming for doing it well manually. Common matting methods will assign each pixel in the image to a certain object category, either black or white. However, because the portrait has hair, if you want to perform matting of the portrait, you need to remove the background and retain the translucent feeling of the hair, so that it will be more natural. That way, in the case of subsequent addition/change of background, change of color, it will blend better, rather than the feeling of a steel plate. In addition, the human body and clothing are flexible items, not like sofa chairs, and which will not deform. The posture of the human body is ever-changing, standing, sitting, cross-legged, leaning back, leaning down, characters overlapping, covering, back, side, not to mention difficult postures such as dancing and raising legs. The wearings of the human body, long sleeves, short sleeves, long skirts, short skirts, wedding dresses, headscarves, scarves, etc. makes it difficult to judge the outline of the body and clothes. Transparent hair, ever-changing postures, and flexible clothing all add dozens of times more difficulty to portrait cutouts. Because it is particularly difficult, the technological breakthrough in the field of portrait matting is also the key advantage of PicUP.AI technology.

Q

When will there be more product cutouts?

We are now making addition to the hardest portrait online matting functionality: matting other general objects. Please try the object matting link on the top. Basically, most objects do not need to be translucent, the edges are very tough and clear, and most of the items that are not deformed are rigid. The currently supported product matting categories include the following: Household such as tables, chairs, sofas, bottles, pots, televisions, electronic products, etc. Animals, such as birds, cats, dogs, horses, sheep, cows, etc . Transportation means, such as airplanes, bicycles, boats, buses, cars, motorcycles, etc . Clothing: clothes, bags, jewelry, shoes, etc. The category is constantly expanding. If you have any special category product needs, you can also contact us.

Q

How is it different from other matting methods?

Using other magnification methods such as PS requires a lot of knowledge and adjustment of many parameters, and the time it takes is hundreds of folds. PicUP.AI can complete online matting in 3 seconds. It takes about 20 minutes for a professional designer to go to the background, which is equivalent to 1200 seconds and 400 times. For unskillful person, after cutting out, there are still obvious unnatural edges of the hair and body, such as hard segmentation, jagged edges or blurring, and noise. The working mechanism of our product is to adjust the special algorithm for the lines, colors, and dots of the picture through neural networks. Therefore, the effect of the cutout is excellent. Naturally, all colors are kept intact, and the edges of the picture don’t have glitches and ghost effects. More importantly, the transparent regions are well defined, so you can use it handily whether you want to change the background or process the background with black and white, blur, and special effects.

Q

What kind of portrait is better for cutout?

After training several millions of pictures of artificial intelligence AI, we achieved the state-of-the-art results. For general hair, posture and clothing, our tool meets the fundamental needs. However, there is still room for improvements. We will conduct more model trainings on larger scale of data. We look forward to each progress.

Q

What is the maximum size of an image that can be uploaded?

在PicUP.After the official release of the PicUP.AI portrait matting service, the growth in user usage caught us off guard. In order to ensure good user experience and commercial availability, the upload resolution is currently limited to a maximum of 2000x2000 and the image file size is less than 10MB. We are considering upgrading the server so that and the higher resolution will be available in the near future. If you like it, please help us share it with your friends. The more users we have, the faster we can develop and the better we can provide.

Q

How fast is the cutout?

The matting speed is currently related to the resolution. The higher the resolution, the more time it takes, most of which are within 3 seconds. In addition, if there are many users at the same time, there will be occasional queues. Please be patient and enjoy your coffee break.

Q

Why does the matting fail?

Some uncommon foregrounds are currently not supported. In addition, due to the influence of the network environment and the number of users using the server at the same time, there is a small chance that the cutout failure will occur. If you encounter this situation, please try again in a few minutes.

Q

How do I view my matting history?

<-Please use the usage history link on the left.

Q

What if I want to pick more pictures?

At the current stage, all pictures with a resolution below 500 * 500 can be downloaded for free. High-resolution pictures are available for free download for 10 times. You will need to pay for more high-resolution image downloads. In order to maintain the large expenditure of the cutout server, especially the graphics card GPU, we provide paid high-resolution image download services and APIs. After paying to upgrade your account, you can use an independent high-performance server to cut out backgrounds faster and more reliably.

Q

What will happen to my uploaded pictures?

Please rest assured that the pictures uploaded by the user and the cutout pictures will be automatically deleted after 15 days. The link to the image address is encrypted. Unless you actively share it publicly, other people cannot view the image.