imfinfocv

Gets information about an image with the image's ComputerVision handle, without re-reading the image again.

Syntax

R = imfinfocv(handle)

Inputs

handle: Handle of the image from a imreadcv command.; Type: integer

Outputs

R

The resulting structure with information about the image in handle. R contains the following fields:

Channel type:: Channel type used in ComputerVision for data layout.
Channels: Channels in the image. 1 for Grayscale images, 3 for RGB images and 4 for RGB images with the alpha channel.
Height: Height of the image in pixels.
Pixel depth: Depth of the image.
Size in bytes: Size of the image in bytes.
Type: Image type in ComputerVision library.
Width: Width of the image in pixels.
Width step: Width of each step (row) in the image.

Type: struct

Example

Gets image information:


handle = imreadcv('img1.png');
R = imfinfocv(handle)

ans = struct [
  Channel type: CV_8UC4
  Channels: 4
  Height: 200
  Pixel depth: 0
  Size in bytes: 40000
  Type: 24
  Width: 200
  Width step: 800
]