Timeline for How to convert TIF to ECW with FME maintaining a certain value?
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 10, 2015 at 10:28 | vote | accept | Jens | ||
| Jul 8, 2015 at 5:02 | answer | added | user54890 | timeline score: 4 | |
| Jul 7, 2015 at 9:09 | comment | added | Jens | Thanks for your hints @user30184. Due to the projection the content is not rectangular - so clipping will not be easy. I will try this approach: mosaic all TIFFs first (500 files, sum of 1.3 GB). Then convert this one large TIFF to one ECW. | |
| Jul 7, 2015 at 8:37 | comment | added | user30184 | Try to find a way for clipping the border out or perhaps you can somehow add alpha channel to image or introduce a mask on AutoCAD side. | |
| Jul 7, 2015 at 8:23 | comment | added | Jens | Thanks @user30184. Unfortunately I did not have ER Mapper. | |
| Jul 7, 2015 at 7:43 | comment | added | user30184 | ECW compression is lossy and you can't keep the original pixel values exactly the same. However, I am remembering that native ECW compressor from ER Mapper had a selection for the background color which should mean that ECW has some mechanism for controlling off-site areas. | |
| Jul 7, 2015 at 7:33 | history | asked | Jens | CC BY-SA 3.0 |