enum cv::ImreadModes

Overview

Imread flags. More…

#include <imgcodecs.hpp>

enum ImreadModes
{
    IMREAD_UNCHANGED           = -1,
    IMREAD_GRAYSCALE           = 0,
    IMREAD_COLOR               = 1,
    IMREAD_ANYDEPTH            = 2,
    IMREAD_ANYCOLOR            = 4,
    IMREAD_LOAD_GDAL           = 8,
    IMREAD_REDUCED_GRAYSCALE_2 = 16,
    IMREAD_REDUCED_COLOR_2     = 17,
    IMREAD_REDUCED_GRAYSCALE_4 = 32,
    IMREAD_REDUCED_COLOR_4     = 33,
    IMREAD_REDUCED_GRAYSCALE_8 = 64,
    IMREAD_REDUCED_COLOR_8     = 65,
    IMREAD_IGNORE_ORIENTATION  = 128,
};

Detailed Documentation

Imread flags.

Enum Values

IMREAD_UNCHANGED

If set, return the loaded image as is (with alpha channel, otherwise it gets cropped).

IMREAD_GRAYSCALE

If set, always convert image to the single channel grayscale image.

IMREAD_COLOR

If set, always convert image to the 3 channel BGR color image.

IMREAD_ANYDEPTH

If set, return 16-bit/32-bit image when the input has the corresponding depth, otherwise convert it to 8-bit.

IMREAD_ANYCOLOR

If set, the image is read in any possible color format.

IMREAD_LOAD_GDAL

If set, use the gdal driver for loading the image.

IMREAD_REDUCED_GRAYSCALE_2

If set, always convert image to the single channel grayscale image and the image size reduced 1/2.

IMREAD_REDUCED_COLOR_2

If set, always convert image to the 3 channel BGR color image and the image size reduced 1/2.

IMREAD_REDUCED_GRAYSCALE_4

If set, always convert image to the single channel grayscale image and the image size reduced 1/4.

IMREAD_REDUCED_COLOR_4

If set, always convert image to the 3 channel BGR color image and the image size reduced 1/4.

IMREAD_REDUCED_GRAYSCALE_8

If set, always convert image to the single channel grayscale image and the image size reduced 1/8.

IMREAD_REDUCED_COLOR_8

If set, always convert image to the 3 channel BGR color image and the image size reduced 1/8.

IMREAD_IGNORE_ORIENTATION

If set, do not rotate the image according to EXIF’s orientation flag.