[jira] [Commented] (PDFBOX-5403) Blurry / distorted rendering

["Oliver Schmidtmer (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PDFBOX-5403?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17568563#comment-17568563 ] 

Oliver Schmidtmer commented on PDFBOX-5403:
-------------------------------------------

How about this version, which only does the scaling if the transform is not too small, but still always does the inversion for smoother rendering.
[^inverse-smooth-scale-shear-2.patch]
The "pattern" in 002-002710-p14.pdf should be visible now, only not as dark as in current head. "bad rendering.pdf" and my other file do work with that.

> Blurry / distorted rendering
> ----------------------------
>
>                 Key: PDFBOX-5403
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-5403
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Rendering
>    Affects Versions: 2.0.25
>            Reporter: Oliver Schmidtmer
>            Priority: Major
>         Attachments: alpha_interpolation.patch, bad rendering.pdf, image-2022-03-29-18-29-03-860.png, image-2022-03-30-14-39-12-855.png, image-2022-03-31-11-55-36-061.png, inver-smooth-scale.patch, inverse-smooth-scale-shear-2.patch, inverse-smooth-scale-shear.patch, screenshot-1.png
>
>
> The attached PDF uses many stripes with an image and a mask.
> There seems to be an issue when mask and image are combined.
> !image-2022-03-29-18-29-03-860.png|width=518,height=91!



--
This message was sent by Atlassian Jira
(v8.20.10#820010)

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@pdfbox.apache.org
For additional commands, e-mail: dev-help@pdfbox.apache.org