Internal change

PiperOrigin-RevId: 705609681

protoscribe/glyphs/helpers/raster_to_vector.sh

@@ -0,0 +1,69 @@
+# Copyright 2024 The Protoscribe Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#!/bin/bash
+#
+# Converts input image in (PNG/JPG/etc.) format to SVG.
+#
+# Please note: You can *also* run this utility *directly* on the input SVGs.
+#
+# Dependencies:
+# -------------
+#   sudo apt-get install imagemagick potrace
+
+# From https://stackoverflow.com/questions/56696496/how-to-convert-jpg-or-png-image-to-svg-and-save-it:
+#
+# Following converts PNG file to PGM format, removes image transparency, outputs
+# the result image to the standard input of `mkbitmap` that transforms the input
+# with highpass filtering and thresholding into a suitable for the `potrace`
+# program format, that finally generates SVG file.
+#
+# You can play around with highpass filtering (-f) and thresholding (-t) values
+# until you have the final look that you want.
+
+while getopts 'i:o:' OPTION ; do
+  case "$OPTION" in
+    i)
+      INPUT_FILE="$OPTARG"
+      ;;
+    o)
+      OUTPUT_FILE="$OPTARG"
+      ;;
+    ?)
+      echo "Usage: $(basename \$0) -i INPUT -o OUTPUT" >&2
+      exit 1
+      ;;
+  esac
+done
+
+if [ ! -f "${INPUT_FILE}" ] ; then
+  echo "Invalid input file!"
+  exit 1
+fi
+if [ -z "${OUTPUT_FILE}" ] ; then
+  echo "Output file not specified!"
+  exit 1
+fi
+
+# This is not trivial as the background is not necessarily white.
+TMPFILE_PGM=$(mktemp --suffix .pgm /tmp/raster2vector.XXXXXX)
+convert -verbose "${INPUT_FILE}" \
+  -fuzz 15% -flatten -alpha remove -background white ${TMPFILE_PGM} \
+  || { echo "convert failed!" >&2; exit 1; }
+TMPFILE_BMP=$(mktemp --suffix .bmp /tmp/raster2vector.XXXXXX)
+mkbitmap -f 32 -t 0.4 ${TMPFILE_PGM} -o ${TMPFILE_BMP} \
+  || { echo "mkbitmap failed!" >&2; exit 1; }
+potrace --svg ${TMPFILE_BMP} -o "${OUTPUT_FILE}" \
+  || { echo "potrace failed!" >&2; exit 1; }
+rm -f ${TMPFILE_PGM} ${TMPFILE_BMP}

protoscribe/glyphs/helpers/vector_to_raster.sh

@@ -0,0 +1,53 @@
+# Copyright 2024 The Protoscribe Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#!/bin/bash
+#
+# Converts SVGs to PNGs.
+#
+# Dependencies:
+# -------------
+#   sudo apt-get install librsvg2-bin
+
+WIDTH=256px
+HEIGHT=256px
+BACKGROUND=
+while getopts 'i:o:h:w:b' OPTION ; do
+  case "$OPTION" in
+    i)
+      INPUT_FILE="$OPTARG"
+      ;;
+    o)
+      OUTPUT_FILE="$OPTARG"
+      ;;
+    w)
+      WIDTH="$OPTARG"
+      ;;
+    h)
+      HEIGHT="$OPTARG"
+      ;;
+    b)
+      BACKGROUND="-b white"
+      ;;
+    ?)
+      echo "Usage: $(basename \$0) -i INPUT -o OUTPUT" >&2
+      exit 1
+      ;;
+  esac
+done
+
+rsvg-convert \
+  --width=${WIDTH} --height=${HEIGHT} \
+  --keep-aspect-ratio ${BACKGROUND} ${INPUT_FILE} > ${OUTPUT_FILE} \
+  || { echo "rsvg-convert failed!" >&2; exit 1; }

protoscribe/glyphs/make_text.sh

@@ -0,0 +1,66 @@
+# Copyright 2024 The Protoscribe Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#!/bin/bash
+
+# Usage, e.g.:
+#
+# protoscribe/glyphs/make_text.sh \
+#  -t X,X,I,I,CLOTH,SHIRT \
+#  -p /var/tmp/22_shirts.png \
+#  -d  # If you want to display the result with Eye of GNOME (eog) viewer.
+
+while getopts 'b:t:p:s:S:d' OPTION
+do
+  case "${OPTION}" in
+    b)
+      BCKGRND="${OPTARG}"
+      ;;
+    t)
+      TERMS="${OPTARG}"
+      ;;
+    p)
+      PNG="${OPTARG}"
+      ;;
+    s)
+      SVG="${OPTARG}"
+      ;;
+    S)
+      SVG_FOR_STROKES="${OPTARG}"
+      ;;
+    d)
+      DISPLAY_PNG=true
+      ;;
+  esac
+done
+if [ "${BCKGRND}" == "" ]
+then
+  BCKGRND="ivory"
+fi
+
+SRC_DIR=protoscribe
+"python ${SRC_DIR}/glyphs/make_text"_main.py \
+  --random_resize \
+  --random_pad \
+  --random_rotate \
+  --extra_pad=50 \
+  --concepts="${TERMS}" \
+  --background_color="${BCKGRND}" \
+  --svg_output="${SVG}" \
+  --svg_for_strokes_output="${SVG_FOR_STROKES}" \
+  --output="${PNG}"
+if [ "${DISPLAY_PNG}" == "true" ]
+then
+  eog "${PNG}"
+fi