[IMAGING-65] Possibility to set DPI for PNG

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.97, 1.0-alpha1, 1.1, 1.x
• Fix Version/s: 1.0-alpha1
• Component/s: Format: PNG

Environment

Any

• Assignee: Unassigned
• Reporter: VVD
• Created: 06/Mar/12 16:10
• Updated: 03/May/19 08:39
• Resolved: 17/Mar/12 09:00

Description

How I can to set DPI for PNG image?

File inImgFile = new File("in.png");
File outImgFile = new File("out.png");
BufferedImage image = Sanselan.getBufferedImage(inImgFile);
// ImageInfo imageinfo = Sanselan.getImageInfo(inImgFile);
// imageinfo.getPhysicalHeightDpi(): returned 300
// imageinfo.getPhysicalWidthDpi(): returned 300
// Sanselan.getMetadata(inImgFile): returned null

ImageFormat format = ImageFormat.IMAGE_FORMAT_PNG;
Sanselan.writeImage(image, outImgFile, format, params);
// imageinfo = Sanselan.getImageInfo(outImgFile);
// imageinfo.getPhysicalHeightDpi(): returned -1
// imageinfo.getPhysicalWidthDpi(): returned -1

Thanks.