Huawei Technologies Co., Limited

Nanjing University of Posts and Telecommunicatins

Petal Cloud Technology Co., Ltd.

Wenjie Zhang

Weicai Zhong

Dengyin Zhang

Liang Hu

Zhou Ye

An image defogging method based on dark channel prior is provided, including: acquiring a dark channel image and a light channel image of a haze weather image according to a haze weather image; selecting pixel values in the light channel image and calculating an atmospheric light value A; obtaining a transmittance image based on the light channel image and the atmospheric light value A; obtaining a restored image of defogging based on the transmittance image and the atmospheric light value A. By using the pixel values of the light channel to distinguish whether pixel points comply with the dark channel prior, calculating the transmittance of image areas that comply with the dark channel prior and those that do not, so as to avoid the situation where the image defogging effect is not good due to inaccurate transmittance estimation, making the defogging of images containing high brightness areas more clear.

Method for image defogging based on dark channel prior

This application relates to the field of digital image processing technologies, and discloses an image-text fusion method and apparatus, and an electronic device, to minimize blockage of a saliency feature in an image by a text when the text is laid out in the image, and obtain a higher visual balance degree after the text is laid out in the first image, thereby achieving a better layout effect. According to the method of this application, first, a plurality of candidate text templates and layout positions of a plurality of corresponding texts in an image can be determined, so that a text laid out in the image does not block a visually salient object having a greater feature value, such as a human face or a building. Then based on magnitudes of feature values of pixels blocked by the text, a balance degree of feature value distribution of pixels in each region in the image in which the text is laid out, and the like when the text is laid out in the image at corresponding layout positions in the image by using different text templates, a final text template of the text and a layout position of the text in the image are determined.

Image-text fusion method and apparatus, and electronic device

A theme icon generation method includes obtaining an application icon, where the application icon includes a transparent region and an opaque region, and the opaque region includes an icon background and a first logo graphic; segmenting a first logo graphic from the opaque region; adjusting a size of the first logo graphic to generate a second logo graphic; and fusing the second logo graphic with a theme template to generate a theme icon.

Growing community of inventors

Nanjing, China

Wenjie Zhang