imgcodecs.hpp 檔案參考

#include "opencv2/core.hpp"

imgcodecs.hpp 的包含依賴關係圖

此圖顯示了哪些檔案直接或間接包含了此檔案

類
結構體	cv::Animation
	表示具有多個幀的動畫。Animation 結構體旨在儲存和管理動畫序列的資料，例如來自動畫格式（例如 GIF、AVIF、APNG、WebP）的資料。它支援迴圈、背景顏色設定、幀計時和幀儲存。更多...
類	cv::ImageCollection
	按需讀取多頁影像。更多...
結構體	cv::ImageCollection::iterator

名稱空間
名稱空間	cv

列舉
列舉	cv::ImageMetadataType {   cv::IMAGE_METADATA_UNKNOWN = -1 ,   cv::IMAGE_METADATA_EXIF = 0 ,   cv::IMAGE_METADATA_XMP = 1 ,   cv::IMAGE_METADATA_ICCP = 2 ,   cv::IMAGE_METADATA_MAX = 2 }
列舉	cv::ImreadModes {   cv::IMREAD_UNCHANGED = -1 ,   cv::IMREAD_GRAYSCALE = 0 ,   cv::IMREAD_COLOR_BGR = 1 ,   cv::IMREAD_COLOR = 1 ,   cv::IMREAD_ANYDEPTH = 2 ,   cv::IMREAD_ANYCOLOR = 4 ,   cv::IMREAD_LOAD_GDAL = 8 ,   cv::IMREAD_REDUCED_GRAYSCALE_2 = 16 ,   cv::IMREAD_REDUCED_COLOR_2 = 17 ,   cv::IMREAD_REDUCED_GRAYSCALE_4 = 32 ,   cv::IMREAD_REDUCED_COLOR_4 = 33 ,   cv::IMREAD_REDUCED_GRAYSCALE_8 = 64 ,   cv::IMREAD_REDUCED_COLOR_8 = 65 ,   cv::IMREAD_IGNORE_ORIENTATION = 128 ,   cv::IMREAD_COLOR_RGB = 256 }
列舉	cv::ImwriteEXRCompressionFlags {   cv::IMWRITE_EXR_COMPRESSION_NO = 0 ,   cv::IMWRITE_EXR_COMPRESSION_RLE = 1 ,   cv::IMWRITE_EXR_COMPRESSION_ZIPS = 2 ,   cv::IMWRITE_EXR_COMPRESSION_ZIP = 3 ,   cv::IMWRITE_EXR_COMPRESSION_PIZ = 4 ,   cv::IMWRITE_EXR_COMPRESSION_PXR24 = 5 ,   cv::IMWRITE_EXR_COMPRESSION_B44 = 6 ,   cv::IMWRITE_EXR_COMPRESSION_B44A = 7 ,   cv::IMWRITE_EXR_COMPRESSION_DWAA = 8 ,   cv::IMWRITE_EXR_COMPRESSION_DWAB = 9 }
列舉	cv::ImwriteEXRTypeFlags {   cv::IMWRITE_EXR_TYPE_HALF = 1 ,   cv::IMWRITE_EXR_TYPE_FLOAT = 2 }
列舉	cv::ImwriteFlags {   cv::IMWRITE_JPEG_QUALITY = 1 ,   cv::IMWRITE_JPEG_PROGRESSIVE = 2 ,   cv::IMWRITE_JPEG_OPTIMIZE = 3 ,   cv::IMWRITE_JPEG_RST_INTERVAL = 4 ,   cv::IMWRITE_JPEG_LUMA_QUALITY = 5 ,   cv::IMWRITE_JPEG_CHROMA_QUALITY = 6 ,   cv::IMWRITE_JPEG_SAMPLING_FACTOR = 7 ,   cv::IMWRITE_PNG_COMPRESSION = 16 ,   cv::IMWRITE_PNG_STRATEGY = 17 ,   cv::IMWRITE_PNG_BILEVEL = 18 ,   cv::IMWRITE_PNG_FILTER = 19 ,   cv::IMWRITE_PXM_BINARY = 32 ,   cv::IMWRITE_EXR_TYPE = (3 << 4) + 0 ,   cv::IMWRITE_EXR_COMPRESSION = (3 << 4) + 1 ,   cv::IMWRITE_EXR_DWA_COMPRESSION_LEVEL = (3 << 4) + 2 ,   cv::IMWRITE_WEBP_QUALITY = 64 ,   cv::IMWRITE_HDR_COMPRESSION = (5 << 4) + 0 ,   cv::IMWRITE_PAM_TUPLETYPE = 128 ,   cv::IMWRITE_TIFF_RESUNIT = 256 ,   cv::IMWRITE_TIFF_XDPI = 257 ,   cv::IMWRITE_TIFF_YDPI = 258 ,   cv::IMWRITE_TIFF_COMPRESSION = 259 ,   cv::IMWRITE_TIFF_ROWSPERSTRIP = 278 ,   cv::IMWRITE_TIFF_PREDICTOR = 317 ,   cv::IMWRITE_JPEG2000_COMPRESSION_X1000 = 272 ,   cv::IMWRITE_AVIF_QUALITY = 512 ,   cv::IMWRITE_AVIF_DEPTH = 513 ,   cv::IMWRITE_AVIF_SPEED = 514 ,   cv::IMWRITE_JPEGXL_QUALITY = 640 ,   cv::IMWRITE_JPEGXL_EFFORT = 641 ,   cv::IMWRITE_JPEGXL_DISTANCE = 642 ,   cv::IMWRITE_JPEGXL_DECODING_SPEED = 643 ,   cv::IMWRITE_GIF_LOOP = 1024 ,   cv::IMWRITE_GIF_SPEED = 1025 ,   cv::IMWRITE_GIF_QUALITY = 1026 ,   cv::IMWRITE_GIF_DITHER = 1027 ,   cv::IMWRITE_GIF_TRANSPARENCY = 1028 ,   cv::IMWRITE_GIF_COLORTABLE = 1029 }
	影像寫入標誌。更多...
列舉	cv::ImwriteGIFCompressionFlags {   cv::IMWRITE_GIF_FAST_NO_DITHER = 1 ,   cv::IMWRITE_GIF_FAST_FLOYD_DITHER = 2 ,   cv::IMWRITE_GIF_COLORTABLE_SIZE_8 = 3 ,   cv::IMWRITE_GIF_COLORTABLE_SIZE_16 = 4 ,   cv::IMWRITE_GIF_COLORTABLE_SIZE_32 = 5 ,   cv::IMWRITE_GIF_COLORTABLE_SIZE_64 = 6 ,   cv::IMWRITE_GIF_COLORTABLE_SIZE_128 = 7 ,   cv::IMWRITE_GIF_COLORTABLE_SIZE_256 = 8 }
	IMWRITE_GIF_QUALITY 引數鍵的 GIF 寫入特定值，如果大於 3，則與顏色表的大小相關。更多...
列舉	cv::ImwriteHDRCompressionFlags {   cv::IMWRITE_HDR_COMPRESSION_NONE = 0 ,   cv::IMWRITE_HDR_COMPRESSION_RLE = 1 }
	IMWRITE_HDR_COMPRESSION 引數鍵的 HDR 寫入特定值。更多...
列舉	cv::ImwriteJPEGSamplingFactorParams {   cv::IMWRITE_JPEG_SAMPLING_FACTOR_411 = 0x411111 ,   cv::IMWRITE_JPEG_SAMPLING_FACTOR_420 = 0x221111 ,   cv::IMWRITE_JPEG_SAMPLING_FACTOR_422 = 0x211111 ,   cv::IMWRITE_JPEG_SAMPLING_FACTOR_440 = 0x121111 ,   cv::IMWRITE_JPEG_SAMPLING_FACTOR_444 = 0x111111 }
列舉	cv::ImwritePAMFlags {   cv::IMWRITE_PAM_FORMAT_NULL = 0 ,   cv::IMWRITE_PAM_FORMAT_BLACKANDWHITE = 1 ,   cv::IMWRITE_PAM_FORMAT_GRAYSCALE = 2 ,   cv::IMWRITE_PAM_FORMAT_GRAYSCALE_ALPHA = 3 ,   cv::IMWRITE_PAM_FORMAT_RGB = 4 ,   cv::IMWRITE_PAM_FORMAT_RGB_ALPHA = 5 }
	用於定義 PAM 檔案中 'TUPLETYPE' 欄位的 PAM 寫入特定元組型別標誌。更多...
列舉	cv::ImwritePNGFilterFlags {   cv::IMWRITE_PNG_FILTER_NONE = 8 ,   cv::IMWRITE_PNG_FILTER_SUB = 16 ,   cv::IMWRITE_PNG_FILTER_UP = 32 ,   cv::IMWRITE_PNG_FILTER_AVG = 64 ,   cv::IMWRITE_PNG_FILTER_PAETH = 128 ,   cv::IMWRITE_PNG_FAST_FILTERS = (IMWRITE_PNG_FILTER_NONE | IMWRITE_PNG_FILTER_SUB | IMWRITE_PNG_FILTER_UP) ,   cv::IMWRITE_PNG_ALL_FILTERS = (IMWRITE_PNG_FAST_FILTERS | IMWRITE_PNG_FILTER_AVG | IMWRITE_PNG_FILTER_PAETH) }
	IMWRITE_PNG_FILTER 引數鍵的 PNG 寫入特定值。更多...
列舉	cv::ImwritePNGFlags {   cv::IMWRITE_PNG_STRATEGY_DEFAULT = 0 ,   cv::IMWRITE_PNG_STRATEGY_FILTERED = 1 ,   cv::IMWRITE_PNG_STRATEGY_HUFFMAN_ONLY = 2 ,   cv::IMWRITE_PNG_STRATEGY_RLE = 3 ,   cv::IMWRITE_PNG_STRATEGY_FIXED = 4 }
	用於調整壓縮演算法的 PNG 寫入特定標誌。更多...
列舉	cv::ImwriteTiffCompressionFlags {   cv::IMWRITE_TIFF_COMPRESSION_NONE = 1 ,   cv::IMWRITE_TIFF_COMPRESSION_CCITTRLE = 2 ,   cv::IMWRITE_TIFF_COMPRESSION_CCITTFAX3 = 3 ,   cv::IMWRITE_TIFF_COMPRESSION_CCITT_T4 = 3 ,   cv::IMWRITE_TIFF_COMPRESSION_CCITTFAX4 = 4 ,   cv::IMWRITE_TIFF_COMPRESSION_CCITT_T6 = 4 ,   cv::IMWRITE_TIFF_COMPRESSION_LZW = 5 ,   cv::IMWRITE_TIFF_COMPRESSION_OJPEG = 6 ,   cv::IMWRITE_TIFF_COMPRESSION_JPEG = 7 ,   cv::IMWRITE_TIFF_COMPRESSION_T85 = 9 ,   cv::IMWRITE_TIFF_COMPRESSION_T43 = 10 ,   cv::IMWRITE_TIFF_COMPRESSION_NEXT = 32766 ,   cv::IMWRITE_TIFF_COMPRESSION_CCITTRLEW = 32771 ,   cv::IMWRITE_TIFF_COMPRESSION_PACKBITS = 32773 ,   cv::IMWRITE_TIFF_COMPRESSION_THUNDERSCAN = 32809 ,   cv::IMWRITE_TIFF_COMPRESSION_IT8CTPAD = 32895 ,   cv::IMWRITE_TIFF_COMPRESSION_IT8LW = 32896 ,   cv::IMWRITE_TIFF_COMPRESSION_IT8MP = 32897 ,   cv::IMWRITE_TIFF_COMPRESSION_IT8BL = 32898 ,   cv::IMWRITE_TIFF_COMPRESSION_PIXARFILM = 32908 ,   cv::IMWRITE_TIFF_COMPRESSION_PIXARLOG = 32909 ,   cv::IMWRITE_TIFF_COMPRESSION_DEFLATE = 32946 ,   cv::IMWRITE_TIFF_COMPRESSION_ADOBE_DEFLATE = 8 ,   cv::IMWRITE_TIFF_COMPRESSION_DCS = 32947 ,   cv::IMWRITE_TIFF_COMPRESSION_JBIG = 34661 ,   cv::IMWRITE_TIFF_COMPRESSION_SGILOG = 34676 ,   cv::IMWRITE_TIFF_COMPRESSION_SGILOG24 = 34677 ,   cv::IMWRITE_TIFF_COMPRESSION_JP2000 = 34712 ,   cv::IMWRITE_TIFF_COMPRESSION_LERC = 34887 ,   cv::IMWRITE_TIFF_COMPRESSION_LZMA = 34925 ,   cv::IMWRITE_TIFF_COMPRESSION_ZSTD = 50000 ,   cv::IMWRITE_TIFF_COMPRESSION_WEBP = 50001 ,   cv::IMWRITE_TIFF_COMPRESSION_JXL = 50002 }
列舉	cv::ImwriteTiffPredictorFlags {   cv::IMWRITE_TIFF_PREDICTOR_NONE = 1 ,   cv::IMWRITE_TIFF_PREDICTOR_HORIZONTAL = 2 ,   cv::IMWRITE_TIFF_PREDICTOR_FLOATINGPOINT = 3 }

函式
CV_EXPORTS_W bool	cv::haveImageReader (const String &filename)
	檢查 OpenCV 是否可以解碼指定的影像檔案。
CV_EXPORTS_W bool	cv::haveImageWriter (const String &filename)
	檢查 OpenCV 是否可以編碼指定的影像檔案或指定的副檔名。
CV_EXPORTS_W size_t	cv::imcount (const String &filename, int flags=IMREAD_ANYCOLOR)
	返回給定檔案中的影像數量。
CV_EXPORTS_W Mat	cv::imdecode (InputArray buf, int flags)
	從記憶體緩衝區讀取影像。
CV_EXPORTS Mat	cv::imdecode (InputArray buf, int flags, Mat *dst)
CV_EXPORTS_W bool	cv::imdecodeanimation (InputArray buf, CV_OUT Animation &animation, int start=0, int count=INT16_MAX)
	將動畫影像緩衝區中的幀載入到 Animation 結構體中。
CV_EXPORTS_W bool	cv::imdecodemulti (InputArray buf, int flags, CV_OUT std::vector< Mat > &mats, const cv::Range &range=Range::all())
	從記憶體緩衝區讀取多頁影像。
CV_EXPORTS_W Mat	cv::imdecodeWithMetadata (InputArray buf, CV_OUT std::vector< int > &metadataTypes, OutputArrayOfArrays metadata, int flags=IMREAD_ANYCOLOR)
	從記憶體緩衝區讀取影像及其關聯的元資料。
CV_EXPORTS_W bool	cv::imencode (const String &ext, InputArray img, CV_OUT std::vector< uchar > &buf, const std::vector< int > &params=std::vector< int >())
	將影像編碼到記憶體緩衝區。
CV_EXPORTS_W bool	cv::imencodeanimation (const String &ext, const Animation &animation, CV_OUT std::vector< uchar > &buf, const std::vector< int > &params=std::vector< int >())
	將 Animation 編碼到記憶體緩衝區。
CV_EXPORTS_W bool	cv::imencodemulti (const String &ext, InputArrayOfArrays imgs, CV_OUT std::vector< uchar > &buf, const std::vector< int > &params=std::vector< int >())
	將影像陣列編碼到記憶體緩衝區。
CV_EXPORTS_W bool	cv::imencodeWithMetadata (const String &ext, InputArray img, const std::vector< int > &metadataTypes, InputArrayOfArrays metadata, CV_OUT std::vector< uchar > &buf, const std::vector< int > &params=std::vector< int >())
	將影像編碼到記憶體緩衝區。
CV_EXPORTS_W Mat	cv::imread (const String &filename, int flags=IMREAD_COLOR_BGR)
	從檔案載入影像。
CV_EXPORTS_W void	cv::imread (const String &filename, OutputArray dst, int flags=IMREAD_COLOR_BGR)
	從檔案載入影像。
CV_EXPORTS_W bool	cv::imreadanimation (const String &filename, CV_OUT Animation &animation, int start=0, int count=INT16_MAX)
	將動畫影像檔案中的幀載入到 Animation 結構體中。
CV_EXPORTS_W bool	cv::imreadmulti (const String &filename, CV_OUT std::vector< Mat > &mats, int flags=IMREAD_ANYCOLOR)
	從檔案載入多頁影像。
CV_EXPORTS_W bool	cv::imreadmulti (const String &filename, CV_OUT std::vector< Mat > &mats, int start, int count, int flags=IMREAD_ANYCOLOR)
	從檔案載入多頁影像的影像。
CV_EXPORTS_W Mat	cv::imreadWithMetadata (const String &filename, CV_OUT std::vector< int > &metadataTypes, OutputArrayOfArrays metadata, int flags=IMREAD_ANYCOLOR)
	從檔案讀取影像及相關元資料。
CV_EXPORTS_W bool	cv::imwrite (const String &filename, InputArray img, const std::vector< int > &params=std::vector< int >())
	將影像儲存到指定檔案。
CV_EXPORTS_W bool	cv::imwriteanimation (const String &filename, const Animation &animation, const std::vector< int > &params=std::vector< int >())
	將 Animation 儲存到指定檔案。
static CV_WRAP bool	cv::imwritemulti (const String &filename, InputArrayOfArrays img, const std::vector< int > &params=std::vector< int >())
	用於繫結的多影像過載
CV_EXPORTS_W bool	cv::imwriteWithMetadata (const String &filename, InputArray img, const std::vector< int > &metadataTypes, InputArrayOfArrays &metadata, const std::vector< int > &params=std::vector< int >())
	將影像和元資料儲存到指定檔案。