Image drawing apparatus for displaying input image on display means

An image drawing apparatus comprising:

• a pressure sensitive tablet having a coordinate input surface which is pressure sensitive to a stylus for drawing images and producing coordinate input data;
• first memory means for storing a variety of color data;
• control means cooperating with said first memory means for coordinating said coordinate input data with said color data;
• video processing means having a video memory for reading said first memory means as commanded by said control means for writing color image data into corresponding addresses o the video memory;
• video encoder means for converting the supplied image data from said video memory to a video signal for display at a display means which is connectable with said image drawing apparatus and
• manually operable vortex circuit means or selectively inducing said video processing means to operate in a vortex mode and recursively move said color image dta written into the addresses of said video memory means in set units so that an image, as determined by said coordinate input data which is displayed on the display means, recursively changes color in a streaming manner.

A video titler comprising:

• video processor means, operatively connected through a peripheral interface with manually operable data input means including a pressure sensitive tablet having a coordinate input surface which is pressure sensitive to a stylus for drawing images, for processing still images;
• first, second, and third address selectors operatively connected with said video processor means by way of bus means for respectively receiving red, green and blue related signals from the video processor means
• first, second, and third palette registers operatively connected with said first, second, and third address selectors by said bus means for holding a plurality of data relating to red, green and blue signal components, respectively, said first, second, and third palette registers being so constructed and arranged that the plurality of data can be recursively written thereinto;
• manually operable vortex circuit means for selectively inducing the plurality of data in said first, second and third palette registers, to recursively move in one set in set units so that an image drawn on said pressure sensitive surface by said stylus, is striped with different color stripes which recursively changes color in a streaming manner when displayed;
• encoder means operatively connected by said bus means with said first, second and third palette registers by way of first second and third bidirectional data selectors;
• and
• mixing circuit means having a first input adapted for connection with a source of video signals and with a display, said mixing circuit means receiving a signal from said encoder means.