didactic green

[Tokugawa]

i sincerely didnt do it till the end, just started backwards, too lazy lol

[justindm]

used pil

[matter]

Good ol' bitmap :-)

[Mcord]

C# anyone ?

Bitmap bm = new Bitmap("greenline.png");
for(var i=0;i< bm.Width;i++)
Console.Write((char)bm.GetPixel(i, 0).G);

[gowron]

Matlab's also very nice: File -> Import Data, choose the image and you're almost done - just apply the char command on the data.

[hubert-cumberdale]

Code: Select all

for(int i = 0; i<ImageIO.read(new File("greenline.png")).getWidth();i++)
  System.out.print((char)((bild.getRGB(i,0)& 0x00ff00) >> 8));

[/code]

[desert77]

I used the gimp and saved as c source code, the text was simply readeble

Code: Select all

/* GIMP RGB C-Source image dump (greenline.c) */

static const struct {
  unsigned int 	 width;
  unsigned int 	 height;
  unsigned int 	 bytes_per_pixel; /* 3:RGB, 4:RGBA */ 
  unsigned char	 pixel_data[84 * 1 * 3 + 1];
} gimp_image = {
  84, 1, 3,
  "\0t\0\0h\0\0e\0\0s\0\0e\0\0\40\0\0b\0\0y\0\0t\0\0e\0\0s\0\0\40\0\0a\0\0r"
  "... etc

[WakiMiko]

using imagemagick:

Code: Select all

$ stream greenline.png -
these bytes are ascii text, as you obviously guessed. your answer is 'ilearnsogood'.

[wynk]

Four lines in Ruby:

Code: Select all

image = ChunkyPNG::Image.from_file('greenline.png')
for i in 0..image.width-1
	print ChunkyPNG::Color.g(image[i,0]).chr
end

[DragonEgghead]

I saved it as a bitmap, then ran these two lines of Python, knowing that any invalid text would just show up as whitespace:

Code: Select all

with open('greenline.bmp') as a:
	print a.read()

Edit: Even better:

Code: Select all

with open('greenline.bmp') as a:
	print ''.join(i for i in a.read() if ord(i)>0 and ord(i)<128)

That way, it gets rid of a lot of the junk data.

[alakani]

using imagemagick:

Code: Select all

$ stream greenline.png -
these bytes are ascii text, as you obviously guessed. your answer is 'ilearnsogood'.

That is so pimp, thank you for sharing. I just used PHP:

Code: Select all

$picture = imagecreatefrompng('greenline.png');
$width = imagesx($picture);

for ($x = 0; $x < $width; $x++) {
  $pixel = imagecolorat($picture, $x, 0);  
  $green = ($pixel >> 8) & 0xFF;
  echo chr($green);
}

[chaoscrusade]

Hello to all the hackers out there

I have decoded the whole picture but i don't know what to do with the output of that.

I will not post my decoded Stuff here since it could spoil.

Can someone who solved the challenge PM me and give me a hint?

btw what does ch2e mean?

(sorry for the bad english I'm from switzerland )

edit: whoops looks like i got the flase thread

[derplumps]

my way:

wget png
convert png bmp
cat bmp