Did you know that we can use machine learning to produce amazing images from text descriptions? Yes, DALL.E 2 is a machine learning model, released in 2022, that can produce amazing images from text descriptions. It is created by OpenAI.
Building on the success of DALL·E (released in 2021), DALL·E 2 uses cutting-edge deep learning techniques to improve the quality and resolution of the pictures created.
Transformer-based: DALL·E 2 is a transformer-based language model. A deep learning model called a transformer uses the self-attention idea to give each incoming data element a distinct weight. It is most frequently utilized in computer vision and natural language processing.
3.5-billion parameter: DALL·E 2 deep learning model has a 3.5-billion parameter base.
Another 1.5-billion parameter: DALL·E 2 uses another 1.5-billion parameter model, on top of the base 3.5-billion parameter to enhance the resolution of the images it produces.
Faster: The DALL·E 2 model is way faster than DALL·E in the area of image processing.
High Performance: The big jump in performance of DALL·E 2, compared to DALL·E is because of a new diffusion model. A diffusion model, a deep generative model, is built on the foundations of a forward diffusion stage and a reverse diffusion stage. In the forward diffusion stage, the input data is gradually perturbed over a number of steps by the addition of Gaussian noise. In order to retrieve the initial input data, a model must learn to gradually and step-by-step reverse the diffusion process. Diffusion models are highly recognized for the quality and diversity of the generated samples, despite their well-known computational demands.
Diffusion model: The diffusion model is a deep learning model which starts with an image that is fully noisy and gradually transforms to make it look like the prompt.
Inpainting: DALL·E 2 can edit an image using what it calls, inpainting. Inpainting is the process of performing edits to an image using language. Using DALL·E 2 to paint is a lot of fun. You can produce arbitrary enormous works of art, like murals, with a little creativity.
Lighting and Shadows: The DALL·E 2 model is also able to generate the required lighting and shadows in the output images. Since the model is aware of the scene in the photograph, it will include details like suitable lighting and shadows or choose appropriate materials.
Add or remove picture elements: The DALL·E 2 model can add or remove picture elements while taking into account the textures, shadows, and reflections present in the image
Training dataset: Precautions have been taken to rule out the possibility of the production of hateful or violent images by DALL·E 2. For this, the training dataset has, for example, been kept free of dangerous weapons and explicit images. Also, some of the hundreds of millions of captioned photos from the internet are used to train DALL·E 2. In order to alter what the model learns the training data is deleted and reweighed.