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# Documentation -- Reference Pages -- accessor metadata
## <anchor='top'> Table Of Contents
- [accessor](accessor.md) ↗
### Operators
- [aktive meta exists](#meta_exists)
- [aktive meta for](#meta_for)
- [aktive meta get](#meta_get)
- [aktive meta info](#meta_info)
- [aktive meta keys](#meta_keys)
- [aktive meta size](#meta_size)
- [aktive meta values](#meta_values)
- [aktive query meta](#query_meta)
## Operators
---
### [↑](#top) <a name='meta_exists'></a> aktive meta exists
Syntax: __aktive meta exists__ src args... [[→ definition](../../../../file?ci=trunk&ln=30&name=etc/transformer/meta.tcl)]
Wraps the dict method "exists" for image meta data management.
Returns result of "dict exists" applied to the input's meta data dictionary
|Parameter|Type|Default|Description|
|:---|:---|:---|:---|
|src|image||Input queried|
|args|str...||Dict command arguments, except for dict value or variable.|
---
### [↑](#top) <a name='meta_for'></a> aktive meta for
Syntax: __aktive meta for__ src args... [[→ definition](../../../../file?ci=trunk&ln=30&name=etc/transformer/meta.tcl)]
Wraps the dict method "for" for image meta data management.
Returns result of "dict for" applied to the input's meta data dictionary
|Parameter|Type|Default|Description|
|:---|:---|:---|:---|
|src|image||Input queried|
|args|str...||Dict command arguments, except for dict value or variable.|
---
### [↑](#top) <a name='meta_get'></a> aktive meta get
Syntax: __aktive meta get__ src args... [[→ definition](../../../../file?ci=trunk&ln=30&name=etc/transformer/meta.tcl)]
Wraps the dict method "get" for image meta data management.
Returns result of "dict get" applied to the input's meta data dictionary
|Parameter|Type|Default|Description|
|:---|:---|:---|:---|
|src|image||Input queried|
|args|str...||Dict command arguments, except for dict value or variable.|
---
### [↑](#top) <a name='meta_info'></a> aktive meta info
Syntax: __aktive meta info__ src args... [[→ definition](../../../../file?ci=trunk&ln=30&name=etc/transformer/meta.tcl)]
Wraps the dict method "info" for image meta data management.
Returns result of "dict info" applied to the input's meta data dictionary
|Parameter|Type|Default|Description|
|:---|:---|:---|:---|
|src|image||Input queried|
|args|str...||Dict command arguments, except for dict value or variable.|
---
### [↑](#top) <a name='meta_keys'></a> aktive meta keys
Syntax: __aktive meta keys__ src args... [[→ definition](../../../../file?ci=trunk&ln=30&name=etc/transformer/meta.tcl)]
Wraps the dict method "keys" for image meta data management.
Returns result of "dict keys" applied to the input's meta data dictionary
|Parameter|Type|Default|Description|
|:---|:---|:---|:---|
|src|image||Input queried|
|args|str...||Dict command arguments, except for dict value or variable.|
---
### [↑](#top) <a name='meta_size'></a> aktive meta size
Syntax: __aktive meta size__ src args... [[→ definition](../../../../file?ci=trunk&ln=30&name=etc/transformer/meta.tcl)]
Wraps the dict method "size" for image meta data management.
Returns result of "dict size" applied to the input's meta data dictionary
|Parameter|Type|Default|Description|
|:---|:---|:---|:---|
|src|image||Input queried|
|args|str...||Dict command arguments, except for dict value or variable.|
---
### [↑](#top) <a name='meta_values'></a> aktive meta values
Syntax: __aktive meta values__ src args... [[→ definition](../../../../file?ci=trunk&ln=30&name=etc/transformer/meta.tcl)]
Wraps the dict method "values" for image meta data management.
Returns result of "dict values" applied to the input's meta data dictionary
|Parameter|Type|Default|Description|
|:---|:---|:---|:---|
|src|image||Input queried|
|args|str...||Dict command arguments, except for dict value or variable.|
---
### [↑](#top) <a name='query_meta'></a> aktive query meta
Syntax: __aktive query meta__ src [[→ definition](../../../../file?ci=trunk&ln=243&name=etc/accessor/attributes.tcl)]
Returns a dictionary containing the input's meta data.
|Input|Description|
|:---|:---|
|src|Source image|
#### <a name='query_meta__examples'></a> Examples
<table>
<tr><th>@1
<br> </th>
<th>aktive query meta @1
<br> </th></tr>
<tr><td valign='top'><img src='example-00664.gif' alt='@1' style='border:4px solid gold'>
<br>geometry(0 0 256 256 3)</td>
<td valign='top'> netpbm {maxval 255} path tests/assets/sines.ppm colorspace sRGB</td></tr>
</table>