[jira] [Commented] (SYSTEMML-1432) Extend `util::pad_image` with a `pad_value` parameter

["Mike Dusenberry (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SYSTEMML-1432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15937249#comment-15937249 ] 

Mike Dusenberry commented on SYSTEMML-1432:
-------------------------------------------

Submitted as part of [PR 437 | https://github.com/apache/incubator-systemml/pull/437].

> Extend `util::pad_image` with a `pad_value` parameter
> -----------------------------------------------------
>
>                 Key: SYSTEMML-1432
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1432
>             Project: SystemML
>          Issue Type: Sub-task
>            Reporter: Mike Dusenberry
>            Assignee: Mike Dusenberry
>            Priority: Minor
>
> Currently, our {{util::pad_image}} function performs zero-padding, which is correct for operations such as convolution.  In some cases, such as max pooling, it is necessary to pad with a different value such as negative infinity.  Therefore, we should extend our {{util::pad_image}} function to accept a {{pad_value}} parameter with a noted typical value of 0.



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