#apertus IRC Channel Logs

off to bed now ... have a good one everyone!

metal_dent[m]: nice, but 1,9 for the small °, sounds like a lot, would've expected that the overall size of both images would be lower, as the area below ° would not be there, but will check later if i can replicate it

BAndiT1983: okay. I'll also try to find some other way to reduce it further

morning folks!

actually 25 bytes :)

hmm, I was looking at the linked 320x240 image, you are probably using a different one ...

but that shouldn't change the size of the features

ohh

there should be an SVG/PDF version somewhere, which might be a better source to render without antialiasing

https://www.apertus.org/logo

https://github.com/apertus-open-source-cinema/apertus_multimedia/tree/master/apertus%C2%B0%20Corporate%20Identity/apertus%C2%B0%20Logo

okay then i'll use the logo from this :))

you should be able to convert an SVG with imagemagick without antialiasing at a given resolution

i.e. two b/w masks, one 'painted' in gray the other in orange

you can also separate the parts in the SVG btw

#c2bfbc = text, #f47248 = ring :)

off for now ... bbl

> metal_dent: ignoring the grays, the orange ring is 14x14 pixel and the text fits into 214x64 so a black/white mask could be stored in 24 byte and 1712 bytes respectively without any compression

In this 1712 bytes = 214*64/8 so it means you're taking the bit depth as 1 ?

for a b/w mask, 1 bit per pixel is enough

yes yes but in this image we want one colour for background and other (#c2bfbc) for the text, right?

(e.g. a '0' bit means background color and a '1' bit means foreground i.e. other color)

that is just a question how you interpret the mask

yes yes!!

another option for example, would be: '0' do not paint anything, '1' paint with given color

> you can assign almost arbitrary meanings to each bit in your paint routine

it's not difficult, just bit shofting, more interesting part is to get the image into right format

accordingly the bit patterns would represent different changes in the image

okay, i haven't properly implemented something like this but i'll look through some resources. Thank you!

yes definitely, thanks again :)

BAndiT1983: in ApertusLogo.h, how's the array size `uint8_t pixel_data[205 * 62 * 2 + 1];` calculated?

2 is for 2 bytes, as we use RGB565

the +1 is definitely odd :)

it's only for enough space

which format do you mean?

.h file format

i converted the image into array using im

sure!

you could also place width and height as first entries

> https://pastebin.com/y0g4Jjbu

looks very similar to what i have also got

metal_dent[m]: pro-tipp, if you add /raw/, it is way simpler to digest, e.g. https://pastebin.com/raw/y0g4Jjbu

> metal_dent: pro-tipp, if you add /raw/, it is way simpler to digest, e.g. https://pastebin.com/raw/y0g4Jjbu

just compare this -> https://www.file-recovery.com/signatures/GIF.png

if oyu select reduced size, then it should become something we are targeting

yes i saw this yesterday but doesn't convert into array

it is all a matter of getting the options right

even if it does not give an array, converting the output is rather simple

so this is giving me the pixels in 0s and 1s

every 8 entries there are a byte, with a simple application, you could convert them to hex values and create an array

please stick to ImageMagick :)

don't know if imagemagick can convert to binary at all

and what about 1 and 0 binary?

hope it can handle PBM -> https://en.wikipedia.org/wiki/Netpbm#File_formats

will give you ASCII 0/1 image

SVG is ok, but to have the image already in right dimensions, it should be placed in empty 320x240 image and scaled to nice size first, then the image should be resized to content, GIMP supports this feature rather well

why?

you want to first scale it, and then convert it to a bitmap

... or ImageMagick :)

you do it your way, but i prefer UI, as i need more overview, than just matrix style

like for example Rex decides to pick a different font for the logo :)

when the font changes, the image has to be placed properly on the display again, as kerning and whatnot changes with a new font

and all you need to do is type 'make all'

not placing, as the logo size can change or icon size, then it has to be placed manually first, according to padding, margin or other attributes

or maybe 25% below center line?

like?

that's all something ImageMagick does for you

for example:

will give you an image which fits on 320x200 display

convert apertus_logo.svg -scale 320x200 -scale 75% test2.png

now to get the real 320x200 image with centered text you do:

but what if our display is actually 320x240 pixel?

convert apertus_logo.svg -scale 320x240 -scale 75% -gravity center -extent 320x240 test4.png

change it, adjust it, it will still be fine afterwards

images should be 1:1 for the display, in other words no scaling will be done for painting, so it should already correspond to the required size on the display, icons on buttons are a bit easier to plan, as they should fit into the button and have some margin around, but logo consisting out of 2 parts requires additional planning

creating a tool to convert to C/C++ array from PBM P1 is very simple, but i won't give the details away yet

okay, i'll convert the image into PBM then into C array

good night

yes, am also off to bed, will do this tomorrow. Good night!!

convert apertus_logo.svg -define h:format=mono -depth 1 apertus_logo.h

the idea is to have a simple and reproducible path from the 'original' to the C-header data

just make sure to get the steps right :)

and back to bed now! :)

You mean the whole conversion, right?

off to bed now ... have a good one everyone!

and why is it mentioned in task to develop 2 bit depth array?I think creating 1 bit depth will be fine 1 for background other for displaying. is't it?

@sergio__:matrix.org: you can look that the logs, Bertl and BAndiT1983 have explained that properly

hey metal_dent about which part exactly?

This one