jpeg Driver¶

The jpeg driver specifies a TensorStore backed by a jpeg. The read volume is indexed by “height” (y), “width” (x), “channel”.

json driver/jpeg : object¶

Extends:¶

• TensorStore — Specifies a TensorStore to open/create.

Required members:¶

driver : "jpeg"¶

kvstore : KvStore¶

Specifies the underlying storage mechanism.

Optional members:¶

context : Context¶

Specifies context resources that augment/override the parent context.

dtype : "uint8"¶

Optional. If specified, must be "uint8".

rank : integer_{[0, 32]}¶

Specifies the rank of the TensorStore.

If transform is also specified, the input rank must match. Otherwise, the rank constraint applies to the driver directly.

transform : IndexTransform¶

Specifies a transform.

schema : Schema¶

Specifies constraints on the schema.

When opening an existing array, specifies constraints on the existing schema; opening will fail if the constraints do not match. Any soft constraints specified in the chunk_layout are ignored. When creating a new array, a suitable schema will be selected automatically based on the specified schema constraints in combination with any driver-specific constraints.

cache_pool : ContextResource = "cache_pool"¶

Specifies or references a previously defined Context.cache_pool. It is normally more convenient to specify a default cache_pool in the context.

data_copy_concurrency : ContextResource = "data_copy_concurrency"¶

Specifies or references a previously defined Context.data_copy_concurrency. It is normally more convenient to specify a default data_copy_concurrency in the context.

quality : number = 75¶

Unused. JPEG Encoding quality in the range 0..100.

Example

{"driver": "jpeg", "kvstore": "gs://my-bucket/path-to-image.jpg"}