[jira] [Updated] (BATIK-1369) Incorrect rasterization of colored mask

["Saša Makorič (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/BATIK-1369?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Saša Makorič updated BATIK-1369:
--------------------------------
    Summary: Incorrect rasterization of colored mask  (was: Incorrect rasterizering of colored mask)

> Incorrect rasterization of colored mask
> ---------------------------------------
>
>                 Key: BATIK-1369
>                 URL: https://issues.apache.org/jira/browse/BATIK-1369
>             Project: Batik
>          Issue Type: Bug
>          Components: SVG Rasterizer
>    Affects Versions: 1.12, 1.17
>            Reporter: Saša Makorič
>            Priority: Major
>         Attachments: example.png, example.svg, output-values.png
>
>
> When rasterizing an SVG to a PNG (or any other format, it doesn't matter), the output image shows slight changes in the RGB values and the alpha channel.
> h4. How to reproduce:
>  * Create an SVG with a masked rectangle filled with color (see example.svg) and another rectangle filled with the same color.
>  * Transform the SVG into a PNG using the following command:
> {code:java}
> java -jar batik-rasterizer-1.17.jar -m image/png -w 800 -d output/ example.svg{code}
>  * Check the output file (example.png). You will notice that the two rectangles have differences in their RGB values and alpha channels (output-values.png).
>  
> The resulting differences are very small but impact the fidelity of the values, especially when using more complex SVGs where layers overlap, making the differences considerably more noticeable.
>  



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