The attr channels indicates the desired number of color channels for the
decoded image.
Accepted values are:
0: Use the number of channels in the JPEG-encoded image.
1: output a grayscale image.
3: output an RGB image.
If needed, the JPEG-encoded image is transformed to match the requested number
of color channels.
The attr ratio allows downscaling the image by an integer factor during
decoding. Allowed values are: 1, 2, 4, and 8. This is much faster than
downscaling the image later.
This op also supports decoding PNGs and non-animated GIFs since the interface is
the same, though it is cleaner to use tf.io.decode_image.
Args
contents
A Tensor of type string. 0-D. The JPEG-encoded image.
channels
An optional int. Defaults to 0.
Number of color channels for the decoded image.
ratio
An optional int. Defaults to 1. Downscaling ratio.
fancy_upscaling
An optional bool. Defaults to True.
If true use a slower but nicer upscaling of the
chroma planes (yuv420/422 only).
try_recover_truncated
An optional bool. Defaults to False.
If true try to recover an image from truncated input.
acceptable_fraction
An optional float. Defaults to 1.
The minimum required fraction of lines before a truncated
input is accepted.
dct_method
An optional string. Defaults to "".
string specifying a hint about the algorithm used for
decompression. Defaults to "" which maps to a system-specific
default. Currently valid values are ["INTEGER_FAST",
"INTEGER_ACCURATE"]. The hint may be ignored (e.g., the internal
jpeg library changes to a version that does not have that specific
option.)
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-01-23 UTC."],[],[]]