diff --git a/Cargo.lock b/Cargo.lock
index 5ed7710..e3ac448 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -8,12 +8,6 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
-[[package]]
-name = "adler32"
-version = "1.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aae1277d39aeec15cb388266ecc24b11c80469deae6067e17a1a7aa9e5c1f234"
-
 [[package]]
 name = "ansi_term"
 version = "0.12.1"
@@ -60,9 +54,9 @@ checksum = "37ccbd214614c6783386c1af30caf03192f17891059cecc394b4fb119e363de3"
 
 [[package]]
 name = "bytemuck"
-version = "1.10.0"
+version = "1.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c53dfa917ec274df8ed3c572698f381a24eef2efba9492d797301b72b6db408a"
+checksum = "374d28ec25809ee0e23827c2ab573d729e293f281dfe393500e7ad618baa61c6"
 
 [[package]]
 name = "byteorder"
@@ -120,16 +114,6 @@ dependencies = [
  "cfg-if",
 ]
 
-[[package]]
-name = "crossbeam-channel"
-version = "0.5.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c02a4d71819009c192cf4872265391563fd6a84c81ff2c0f2a7026ca4c1d85c"
-dependencies = [
- "cfg-if",
- "crossbeam-utils",
-]
-
 [[package]]
 name = "crossbeam-deque"
 version = "0.8.1"
@@ -166,13 +150,10 @@ dependencies = [
 ]
 
 [[package]]
-name = "deflate"
-version = "1.0.0"
+name = "crunchy"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c86f7e25f518f4b81808a2cf1c50996a61f5c2eb394b2393bd87f2a4780a432f"
-dependencies = [
- "adler32",
-]
+checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
 
 [[package]]
 name = "either"
@@ -188,18 +169,18 @@ checksum = "a357d28ed41a50f9c765dbfe56cbc04a64e53e5fc58ba79fbc34c10ef3df831f"
 
 [[package]]
 name = "exr"
-version = "1.4.2"
+version = "1.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "14cc0e06fb5f67e5d6beadf3a382fec9baca1aa751c6d5368fdeee7e5932c215"
+checksum = "e8af5ef47e2ed89d23d0ecbc1b681b30390069de70260937877514377fc24feb"
 dependencies = [
  "bit_field",
- "deflate",
  "flume",
  "half",
- "inflate",
  "lebe",
+ "miniz_oxide 0.6.2",
  "smallvec",
  "threadpool",
+ "zune-inflate",
 ]
 
 [[package]]
@@ -212,6 +193,15 @@ dependencies = [
  "once_cell",
 ]
 
+[[package]]
+name = "fdeflate"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d329bdeac514ee06249dabc27877490f17f5d371ec693360768b838e19f3ae10"
+dependencies = [
+ "simd-adler32",
+]
+
 [[package]]
 name = "flate2"
 version = "1.0.24"
@@ -219,7 +209,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f82b0f4c27ad9f8bfd1f3208d882da2b09c301bc1c828fd3a00d0216d2fbbff6"
 dependencies = [
  "crc32fast",
- "miniz_oxide",
+ "miniz_oxide 0.5.3",
 ]
 
 [[package]]
@@ -262,9 +252,9 @@ dependencies = [
 
 [[package]]
 name = "gif"
-version = "0.11.4"
+version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3edd93c6756b4dfaf2709eafcc345ba2636565295c198a9cfbf75fa5e3e00b06"
+checksum = "80792593675e051cf94a4b111980da2ba60d4a83e43e0048c5693baab3977045"
 dependencies = [
  "color_quant",
  "weezl",
@@ -272,9 +262,13 @@ dependencies = [
 
 [[package]]
 name = "half"
-version = "1.8.2"
+version = "2.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eabb4a44450da02c90444cf74558da904edde8fb4e9035a9a6a4e15445af0bd7"
+checksum = "bc52e53916c08643f1b56ec082790d1e86a32e58dc5268f897f313fbae7b4872"
+dependencies = [
+ "cfg-if",
+ "crunchy",
+]
 
 [[package]]
 name = "heck"
@@ -296,9 +290,9 @@ dependencies = [
 
 [[package]]
 name = "image"
-version = "0.24.2"
+version = "0.24.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28edd9d7bc256be2502e325ac0628bde30b7001b9b52e0abe31a1a9dc2701212"
+checksum = "6f3dfdbdd72063086ff443e297b61695500514b1e41095b6fb9a5ab48a70a711"
 dependencies = [
  "bytemuck",
  "byteorder",
@@ -306,11 +300,10 @@ dependencies = [
  "exr",
  "gif",
  "jpeg-decoder",
- "num-iter",
  "num-rational",
  "num-traits",
  "png",
- "scoped_threadpool",
+ "qoi",
  "tiff",
 ]
 
@@ -335,20 +328,11 @@ dependencies = [
  "unicode-width",
 ]
 
-[[package]]
-name = "inflate"
-version = "0.4.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1cdb29978cc5797bd8dcc8e5bf7de604891df2a8dc576973d71a281e916db2ff"
-dependencies = [
- "adler32",
-]
-
 [[package]]
 name = "jpeg-decoder"
-version = "0.2.6"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9478aa10f73e7528198d75109c8be5cd7d15fb530238040148d5f9a22d4c5b3b"
+checksum = "bc0000e42512c92e31c2252315bda326620a4e034105e900c98ec492fa077b3e"
 dependencies = [
  "rayon",
 ]
@@ -370,9 +354,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "lebe"
-version = "0.5.1"
+version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7efd1d698db0759e6ef11a7cd44407407399a910c774dd804c64c032da7826ff"
+checksum = "03087c2bad5e1034e8cace5926dec053fb3790248370865f5117a7d0213354c8"
 
 [[package]]
 name = "libc"
@@ -417,6 +401,25 @@ dependencies = [
  "adler",
 ]
 
+[[package]]
+name = "miniz_oxide"
+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b275950c28b37e794e8c55d88aeb5e139d0ce23fdbbeda68f8d7174abdf9e8fa"
+dependencies = [
+ "adler",
+]
+
+[[package]]
+name = "miniz_oxide"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e7810e0be55b428ada41041c41f32c9f1a42817901b4ccf45fa3d4b6561e74c7"
+dependencies = [
+ "adler",
+ "simd-adler32",
+]
+
 [[package]]
 name = "nanorand"
 version = "0.7.0"
@@ -436,17 +439,6 @@ dependencies = [
  "num-traits",
 ]
 
-[[package]]
-name = "num-iter"
-version = "0.1.43"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7d03e6c028c5dc5cac6e2dec0efda81fc887605bb3d884578bb6d6bf7514e252"
-dependencies = [
- "autocfg",
- "num-integer",
- "num-traits",
-]
-
 [[package]]
 name = "num-rational"
 version = "0.4.1"
@@ -511,14 +503,15 @@ dependencies = [
 
 [[package]]
 name = "png"
-version = "0.17.5"
+version = "0.17.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc38c0ad57efb786dd57b9864e5b18bae478c00c824dc55a38bbc9da95dde3ba"
+checksum = "dd75bf2d8dd3702b9707cdbc56a5b9ef42cec752eb8b3bafc01234558442aa64"
 dependencies = [
  "bitflags",
  "crc32fast",
- "deflate",
- "miniz_oxide",
+ "fdeflate",
+ "flate2",
+ "miniz_oxide 0.7.1",
 ]
 
 [[package]]
@@ -554,6 +547,15 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "qoi"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f6d64c71eb498fe9eae14ce4ec935c555749aef511cca85b5568910d6e48001"
+dependencies = [
+ "bytemuck",
+]
+
 [[package]]
 name = "quote"
 version = "1.0.20"
@@ -565,26 +567,22 @@ dependencies = [
 
 [[package]]
 name = "rayon"
-version = "1.5.3"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bd99e5772ead8baa5215278c9b15bf92087709e9c1b2d1f97cdb5a183c933a7d"
+checksum = "9c27db03db7734835b3f53954b534c91069375ce6ccaa2e065441e07d9b6cdb1"
 dependencies = [
- "autocfg",
- "crossbeam-deque",
  "either",
  "rayon-core",
 ]
 
 [[package]]
 name = "rayon-core"
-version = "1.9.3"
+version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "258bcdb5ac6dad48491bb2992db6b7cf74878b0384908af124823d118c99683f"
+checksum = "5ce3fb6ad83f861aac485e76e1985cd109d9a3713802152be56c3b1f0e0658ed"
 dependencies = [
- "crossbeam-channel",
  "crossbeam-deque",
  "crossbeam-utils",
- "num_cpus",
 ]
 
 [[package]]
@@ -602,18 +600,18 @@ version = "0.6.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a3f87b73ce11b1619a3c6332f45341e0047173771e8b8b73f87bfeefb7b56244"
 
-[[package]]
-name = "scoped_threadpool"
-version = "0.1.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d51f5df5af43ab3f1360b429fa5e0152ac5ce8c0bd6485cae490332e96846a8"
-
 [[package]]
 name = "scopeguard"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
+[[package]]
+name = "simd-adler32"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d66dc143e6b11c1eddc06d5c423cfc97062865baf299914ab64caa38182078fe"
+
 [[package]]
 name = "smallvec"
 version = "1.9.0"
@@ -711,9 +709,9 @@ dependencies = [
 
 [[package]]
 name = "tiff"
-version = "0.7.2"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7cfada0986f446a770eca461e8c6566cb879682f7d687c8348aa0c857bd52286"
+checksum = "6d172b0f4d3fba17ba89811858b9d3d97f928aece846475bbda076ca46736211"
 dependencies = [
  "flate2",
  "jpeg-decoder",
@@ -837,3 +835,12 @@ name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+
+[[package]]
+name = "zune-inflate"
+version = "0.2.54"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73ab332fe2f6680068f3582b16a24f90ad7096d5d39b974d1c0aff0125116f02"
+dependencies = [
+ "simd-adler32",
+]
diff --git a/Cargo.toml b/Cargo.toml
index 3a097f0..6ceeeb9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,8 +6,8 @@ license = "GPL-3.0-only"
 edition = "2018"
 
 [dependencies]
-image = "0.24.2"
-rayon = "1.5.3"
+image = "0.24.7"
+rayon = "1.8.0"
 indicatif = { version = "0.16.2", features = ["rayon", "improved_unicode"] }
 structopt = "0.3.26"
 eyre = "0.6.8"
diff --git a/README.md b/README.md
index 8ac0def..7effb34 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,33 @@
 
 Create a photo mosaic out of any tileset and source image!
 
+## Build
+1. Use [rustup](https://rustup.rs/) to install the rust compiler.
+2. Compile the project with `cargo build -r`. The resulting binary is located in `./target/release/themis`
+3. Run the binary either from the `./target` directory or with `cargo run -r -- -h`
+
 ## Usage
 
-Clone the repo and run `cargo run --release -- -h`, everything will be explained
+### Flags
+- `-h`, `--help`: Prints the help dialog
+- `-k`, `--keep-aspect-ratio`: Keep the aspect ratio of the original image
+- `-V`, `--version`: Print the current version of this program
+
+### Options
+- `-i`, `--input-dir <input-dir>`: Specify the path to the cover images.
+    These images are used to compile a mosaic image from the tiles.
+- `-m`, `--mosaic-size <mosaic-size`: Specify the side length of tiles in the target image.
+    A mosaic therefore consists of `mosaic-size x mosaic-size` tiles. The default value is 128.
+- `-o`, `--output-dir <output-dir`: The output directory where all finished mosaic images will be saved.
+    The default directory is `output`.
+- `--tile-size <tile-size`: The side length of each tile (in pixel). This influences the image resolution inside a tile.
+    The default value is `26`.
+- `-t`, `--tiles-dir <tiles-dir`: The directory which contains the tiles to utilize for the mosaic.
+
+### Examples
+```sh
+cargo run -r -- -t ./mosaic_tiles -o ./mosaic_output -i ./cover_images -m 100 --tile-size 200
+```
+This example will take one or multiple cover images (sequentially) out of the `./cover_images` directory.
+Themis then scales down the tiles out of `./mosaic_tiles` to `200 x 200` pixels and arranges
+the tiles. The result will be a mosaic consisting of `100 x 100` tiles stored in `./mosaic_output`.