The present disclosure provides for dynamic application of image filters in picture editor applications. A selected filter is dynamically applied to a portion of an image displayed on a screen as a drag handle is moved across the image, the portion of the image to which the selected filter is applied being changeable in size with motion of handle across the image and determined by a position of the handle on the screen. Changes to the portion of the image caused by application of the selected filter are dynamically displayed as the handle is moved across the image displayed on the screen.