User`s guide

R2007b
16-2
New Interactive Image Sequence and Video Viewer
The toolbox now supports a new interactive image sequence viewer, called the Movie
Player (implay). Using the Movie Player you can:
• Play a MATLAB movie, AVI file, or multidimensional array.
• Step through a movie or sequence of images, frame-by-frame, or jump to the
beginning or end of the sequence.
• Examine a frame using the Pixel Region tool or export the frame to the Image Tool.
Image Tool Includes Cropping, Enhanced Contrast Adjustment, and
Saving of Modified Images
The Image Tool (imtool) supports several enhancements:
• You can now modify the image data after performing a contrast adjustment operation.
Previously, contrast adjustment only affected the display of the image, not the actual
image data. To modify image data, click Adjust Data in the Adjust Contrast tool.
• You can now interactively crop an image displayed in the Image Tool using the Crop
Image button in the toolbar (or select Crop Image from the Tools menu).
• You can now save the image displayed in the image tool in any of several common
image file formats. Select Save As from the Image Tool File menu.
New Function for Converting Bayer Pattern Encoded Images to RGB
The toolbox now supports a function, demosaic, that can convert a Bayer pattern encoded
image into an RGB image.
A Bayer filter mosaic, or color filter array, refers to the arrangement of color filters that
let each sensor in a single-sensor digital camera record only red, green, or blue data.
The patterns emphasize the number of green sensors to mimic the human eye's greater
sensitivity to green light. The demosaic function uses interpolation to convert the two-
dimensional Bayer-encoded image into a truecolor image, in the RGB color space.
New Function for Creating a Multiresolution Gaussian Pyramid
The toolbox now supports a function, impyramid, that you can use to create a
multiresolution Gaussian pyramid. If you specify the 'reduce' parameter, impyramid