Abstract:
In some implementations, a method includes: obtaining a first image; determining characterization properties for each of a plurality of pixels within the first image; determining a dominant hue based on the one or more characterization properties for each of the plurality of pixels within the first image; determining a plurality of hues that satisfy a predetermined perception threshold relative to the dominant hue based on the characterization properties for each of the plurality of pixels within the first image, wherein the plurality of hues is different from the dominant hue; and generating a second image based at least in part on the dominant hue and the plurality of hues. In some implementations, the second image corresponds to a color gradient generated based on the dominant hue within the first image. In some implementations, the second image is set as a wallpaper for a user interface.
Abstract:
In some implementations, a method includes: obtaining a first image; determining characterization properties for each of a plurality of pixels within the first image; determining a dominant hue based on the one or more characterization properties for each of the plurality of pixels within the first image; determining a plurality of hues that satisfy a predetermined perception threshold relative to the dominant hue based on the characterization properties for each of the plurality of pixels within the first image, wherein the plurality of hues is different from the dominant hue; and generating a second image based at least in part on the dominant hue and the plurality of hues. In some implementations, the second image corresponds to a color gradient generated based on the dominant hue within the first image. In some implementations, the second image is set as a wallpaper for a user interface.
Abstract:
A method and apparatus for generating a grayscale image. The method and apparatus receive a single value. From the single value, the method and apparatus generate a set of grayscale weighting values. The method and apparatus generate the grayscale based on a color image and the set of grayscale weighting values. By limiting the number of values to a single value, the method and apparatus prevents a user from arbitrarily selecting a number of possible weighting values which could result in a grayscale image that is too dim or too bright. This single control method and apparatus quickly and efficiently produces a grayscale image that is neither too bright nor too dim.
Abstract:
Some embodiments provide a method for color balancing an image. The method receives a first selection of a first mode of a color balance tool that includes several different color balance modes. Each color balance mode is for applying color balance operations to the image. The method uses the first mode of the color balance tool to apply a first set of color balance operations to the image. The method receives a second selection to switch from the first mode to a second mode of the color balance tool. The method uses the second mode of the color balance tool to apply a second set of color balance operations to the image.
Abstract:
Some embodiments provide a method of automatically color balancing an image. The method receives a selection of a user interface (UI) item to automatically color balance the image using a color balance tool that includes several color balance modes. In response to the selection, the method analyzes the image based on a set of criteria. Based on the analysis, the method automatically selects a color balance mode from the several color balance modes of the color balance tool. Upon selecting the color balance mode, the method uses the color balance mode to automatically apply a set of color balance operations to the image.
Abstract:
Some embodiments of the image editing and organizing application described herein provide an automatic enhancement process that includes a shadow lift adjustment. The process takes an input image and enhances the contrast of darker parts of the image. The process uses a structure histogram to determine an amount of shadow lift adjustment to apply to the image. The process tempers this adjustment based on an International Organization for Standardization (ISO) value of the image.
Abstract:
Some embodiments of the image editing and organizing application described herein provide a method of adjusting an image that includes a tonal response curve adjustment stage. In the tonal response curve adjustment stage, the method sets a black point and a white point for a tonal response curve and tempers the settings. The method sets a median point and mid-tone contrast points, ensures that the mid-tone contrast points can increase, but not decrease the mid-tone contrast, and then temper the mid-tone contrast points. The method then adjusts the image according to the tonal response curve generated from the points.
Abstract:
Some embodiments provide a method that provides a graphical user interface (GUI) for color balancing an image. The method provides a display area for displaying the image. The method provides several color balance modes. The method provides a user interface (UI) control associated with a color balance mode in the several color balance modes. The UI control performs a color balance operation on the image by (1) identifying a color cast in the image and (2) modifying pixels in the image based on the pixels' luminance values in order to reduce the color cast in the image.
Abstract:
A non-transitory machine readable medium that has a computer program for adjusting color values of an image represented in a color space is described. The image includes several pixels. Each pixel includes a set of color values. The computer program receives a selection of a location on the image. The computer program determines a type of content that is associated with the selected location on the image. From several different image editing operations, the computer program selects a set of image editing operations based on the determined type of content. The computer program displays a set of user interface controls that is associated with the selected set of image editing operations.
Abstract:
In some implementations, a method includes: obtaining a first image; determining characterization properties for each of a plurality of pixels within the first image; determining a dominant hue based on the one or more characterization properties for each of the plurality of pixels within the first image; determining a plurality of hues that satisfy a predetermined perception threshold relative to the dominant hue based on the characterization properties for each of the plurality of pixels within the first image, wherein the plurality of hues is different from the dominant hue; and generating a second image based at least in part on the dominant hue and the plurality of hues. In some implementations, the second image corresponds to a color gradient generated based on the dominant hue within the first image. In some implementations, the second image is set as a wallpaper for a user interface.