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DamionD-321
May 23, 2023
Solved

16-bit png renditions

  • May 23, 2023
  • 1 reply
  • 741 views

Hi,

 

I'm sure this is an easy one, but I can't see for looking.

 

In AEM Assets, when I upload a 16-bit png, I need the renditions it generates to also be 16-bit png. Currently, I can only get the system to generate 8-bit png's, so Im losing the alpha channel.

 

Any pointers will be much appreciated

Cheers

 

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Best answer by MayurSatav

hi @damiond-321 ,

You can create a custom workflow model to handle the generation of 16-bit PNG renditions. Here's an alternative approach:

  1. Access the AEM Workflow Console:

    • Log in to your AEM author instance.
    • Navigate to Tools -> Workflow -> Models.
    • Click on the "Create" button to create a new workflow model.

  2. Define the workflow model:

    • Give the workflow model a suitable title and name.
    • Add the "Thumbnail Process" step to the workflow model. This step is responsible for generating renditions.
    • Configure the "Thumbnail Process" step to generate the desired rendition sizes and formats.

  3. Add a custom process step:

    • Add a custom process step after the "Thumbnail Process" step.
    • Configure the custom process step to execute a script that modifies the rendition options.

    Here's an example script that sets the rendition options for 16-bit PNG:

 

// Create custom rendition options var renditionOptions = { mime: "image/png", quality: 1.0, bitDepth: 16 }; // Get the asset object var asset = workflowData.getPayload(); // Update the rendition options for all renditions asset.addRenditionOptions(renditionOptions);

 

4. Save and activate the workflow model.


This custom workflow model will generate 16-bit PNG renditions for your assets. You can initiate this workflow manually or configure it to run automatically when assets are uploaded or modified.

1 reply

MayurSatav
Community Advisor and Adobe Champion
MayurSatavCommunity Advisor and Adobe ChampionAccepted solution
Community Advisor and Adobe Champion
May 23, 2023

hi @damiond-321 ,

You can create a custom workflow model to handle the generation of 16-bit PNG renditions. Here's an alternative approach:

  1. Access the AEM Workflow Console:

    • Log in to your AEM author instance.
    • Navigate to Tools -> Workflow -> Models.
    • Click on the "Create" button to create a new workflow model.

  2. Define the workflow model:

    • Give the workflow model a suitable title and name.
    • Add the "Thumbnail Process" step to the workflow model. This step is responsible for generating renditions.
    • Configure the "Thumbnail Process" step to generate the desired rendition sizes and formats.

  3. Add a custom process step:

    • Add a custom process step after the "Thumbnail Process" step.
    • Configure the custom process step to execute a script that modifies the rendition options.

    Here's an example script that sets the rendition options for 16-bit PNG:

 

// Create custom rendition options var renditionOptions = { mime: "image/png", quality: 1.0, bitDepth: 16 }; // Get the asset object var asset = workflowData.getPayload(); // Update the rendition options for all renditions asset.addRenditionOptions(renditionOptions);

 

4. Save and activate the workflow model.


This custom workflow model will generate 16-bit PNG renditions for your assets. You can initiate this workflow manually or configure it to run automatically when assets are uploaded or modified.

    D
    DamionD-321Author
    May 23, 2023

    Amazing, thank you so much.

    I'll give this a go

     

    Cheers

    Damion

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