Search found 7 matches

by rossoe
2018-01-25T01:00:44-07:00
Forum: Users
Topic: Issues converting to 8bit Tif
Replies: 13
Views: 6348

Re: Issues converting to 8bit Tif

It's a custom built mod that runs on top of Arma 3 engine to manage surface masks https://forums.bohemia.net/forums/topic/210105-surface-painter-a-simple-toolbox-for-map-makers/ It apparently uses the " Lossless Fast Pseudo-Quantization Algorithm " by Carsten Klein https://sourceforge.net/...
by rossoe
2018-01-24T17:41:31-07:00
Forum: Users
Topic: Issues converting to 8bit Tif
Replies: 13
Views: 6348

Re: Issues converting to 8bit Tif

Ok so I ran a 'identify' on both, could you please help me check what it so different which I might be able to fix with a revised command - seems like my application is happy with a tif when the colormap is buffered out to 256 colours? - but are you able to preserve that from the source tif's? The 4...
by rossoe
2018-01-21T14:59:06-07:00
Forum: Users
Topic: Issues converting to 8bit Tif
Replies: 13
Views: 6348

Re: Issues converting to 8bit Tif

Thank you for your help on this snibgo by the way, i apologise as I am not familiar with image bit depth and colour profiles I have been trying to read up on it here: https://books.google.co.uk/books?id=6KVZ8Ya6a8cC&pg=PA72&lpg=PA72&dq=imagemagick+-type+palette+description&source=bl&...
by rossoe
2018-01-20T13:52:20-07:00
Forum: Users
Topic: Issues converting to 8bit Tif
Replies: 13
Views: 6348

Re: Issues converting to 8bit Tif

I'm after 8bit (indexed colour - 256 colours) Type: Palette Base type: TrueColor < **** does this mean that it's 24 bit? ***** Endianess: LSB Colorspace: sRGB Depth: 8-bit < ** regardless of this ** Channel depth: Red: 8-bit Green: 8-bit Blue: 1-bit I ran this command on all my append's: magick conv...
by rossoe
2018-01-20T10:40:31-07:00
Forum: Users
Topic: Issues converting to 8bit Tif
Replies: 13
Views: 6348

Re: Issues converting to 8bit Tif

Even though the identify is showing "Depth: 8-bit", when I checked the final single image in irfanview it said it was back to 24bit https://imgur.com/a/RnPab I needed the final single image to be 8bit So I had to decrease colour depth in irfanview to get it back to 8bit again https://imgur...
by rossoe
2018-01-20T01:45:52-07:00
Forum: Users
Topic: Issues converting to 8bit Tif
Replies: 13
Views: 6348

Re: Issues converting to 8bit Tif

So here are the 'identify' details on the 4 images before I stitch them together with ImageMagick: iow_1x1m_8bit.tif Type: Palette Endianess: LSB Colorspace: sRGB Depth: 8/1-bit Channel depth: Red: 1-bit Green: 1-bit Blue: 1-bit iow_1x2m_8bit.tif Type: Palette Endianess: LSB Colorspace: sRGB Depth: ...
by rossoe
2018-01-19T13:46:09-07:00
Forum: Users
Topic: Issues converting to 8bit Tif
Replies: 13
Views: 6348

Issues converting to 8bit Tif

I have an application that requires input of 8bit lzw compressed tif files the original images are 'bmp's' and are fairly large 40960 x 40960 - (aerial photography) So handling them in Photoshop was not possible as a single image, I splice them into 4 tiles or 20480. I needed to convert these 4 bmp'...