Tesseract.pix_write_jp2k

Tesseract.pix_write_jp2k — Function

pix_write_jp2k(
    filename::AbstractString,
    pix::Pix;
    quality::Integer = Int32(34),
    levels::Integer= Int32(5)
)::Bool

Write an image to a file in the JP2K image format. If there is an error false is returned.

Arguments:

T	Name	Default	Description
R	filename		The name of the file to write to.
R	pix		The image to write to the file.
O	quality	`Int32(34)`	The quality to encode the image at.
O	levels	`Int32(5)`	The number of reduced resolution images to encode in the file.

Restriction:

quality - Must be in the range 1 to 100.
levels - Can be a value from 1 to 10.

Details:

If the file exists it will be overwritten.

Setting quality to 100 would generate a lossless image.

If levels is 1 then only a full resolution image is encoded in the file. A value of 2 would cause a full resolution image and half resolution image to be encoded. The default value of 5 will cause images with a reduction factor of 1, 2, 4, 8, and 16 to be encoded in the file.

Leptonica restricts he number of levels to less than or equal to 10. However imperical tests show that any value over 8 fails in the OpenJpeg library.

source

pix_write_jp2k(
    stream::IO,
    pix::Pix;
    quality::Integer = Int32(34),
    levels::Integer= Int32(5)
)::Bool

Write an image to an IO stream in the JP2K image format. If there is an error false is returned.

Arguments:

T	Name	Default	Description
R	stream		The stream to write the image to.
R	pix		The image to write to the stream.
O	quality	`Int32(34)`	The quality to encode the image at.
O	levels	`Int32(5)`	The number of reduced resolution images to encode in the file.

Restriction:

quality - Must be in the range 1 to 100.
levels - Can be a value from 1 to 10.

Details:

Setting quality to 100 would generate a lossless image.

Leptonica restricts he number of levels to less than or equal to 10. However imperical tests show that any value over 8 fails in the OpenJpeg library.

source

pix_write_jp2k(
    pix::Pix;
    quality::Integer = Int32(34),
    levels::Integer= Int32(5)
)::Union{Vector{UInt8}, Nothing}

Write an image to a byte array in the JP2K image format. If there is an error nothing is returned.

Arguments:

T	Name	Default	Description
R	pix		The image to write to the byte array.
O	quality	`Int32(34)`	The quality to encode the image at.
O	levels	`Int32(5)`	The number of reduced resolution images to encode in the file.

Restriction:

quality - Must be in the range 1 to 100.
levels - Can be a value from 1 to 10.

Details:

Setting quality to 100 would generate a lossless image.

Leptonica restricts he number of levels to less than or equal to 10. However imperical tests show that any value over 8 fails in the OpenJpeg library.

source