ConvImgs

ConvImgs is an application that allows the batch interconversion (in the background) of various image filetypes, e.g. sprite, PNG, JPEG, TIFF with the bonus that a number of simple transformations can be carried out at the same time. The transformations include rotations, flipping, and scaling images.

ConvImgs has been tested successfully on the BeagleBoard, PandaRO, iMX6, Titanium and IGEPv5.

You can download the ConvImgs application (complete with in app help file, in html format) as a zip file

Download ConvImgs, Version: 1.12, Zip file size: 977 KB

Changes in version 1.12 (17 Oct 2020)

• Allow multi-image sprites to be processed
• Changed flex memory management to fix non-startup on 4GB RaPi4
• Fix: Gamma setting - ensure correct rounding when interconverting float<>int

Changes in version 1.11 (29 Jan 2017)

• Now linked with a modified IJPG library which uses custom memory allocation and management, rather than the C stdlib malloc/free functions. This means ConvImgs will no longer terminate the loading of large progressive jpeg files due to memory allocation problems
• Fix: Extension handling when original filename contains multiple '/' characters
• Adjust click on iconbar icon now opens choices
• Choices window now remembers previous position when reopened

Changes in version 1.10 (26 May 2016)

• Addition of the colour processing options gamma, brightness and contrast
• Now loads the new RISC OS 5 sprite types with the reversed colour order of RGB, rather than the BGR order used previously. Sprites will always be saved in RISC OS 3.5 format, so they are compatible with all hardware and OS combinations. This means that the new 4K colour mode sprites are converted to standard 32K colour sprites. The RISC OS 6 64K colour mode sprites will also be converted to 32K, resulting in a small loss in colour information.

All communication about ConvImgs should be directed to Chris Johnson (chrisjohnson@spamcop.net ). Suggestions for new features are always welcome.