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[Posts] Generate samples with background color (#649)

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Tarrgon 2024-06-28 12:13:52 -04:00 committed by GitHub
parent 4f61a94504
commit 0df2e77ab5
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3 changed files with 16 additions and 10 deletions
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16
app/logical/danbooru_image_resizer.rb
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@ -6,23 +6,29 @@ module DanbooruImageResizer
# https://www.libvips.org/API/current/libvips-resample.html#vips-thumbnail
THUMBNAIL_OPTIONS = { size: :down, linear: false, no_rotate: true, export_profile: "srgb", import_profile: "srgb" }.freeze
# https://www.libvips.org/API/current/VipsForeignSave.html#vips-jpegsave
JPEG_OPTIONS = { background: 0, strip: true, interlace: true, optimize_coding: true }.freeze
JPEG_OPTIONS = { strip: true, interlace: true, optimize_coding: true }.freeze
CROP_OPTIONS = { linear: false, no_rotate: true, export_profile: "srgb", import_profile: "srgb", crop: :attention }.freeze
def resize(file, width, height, resize_quality = 90)
def resize(file, width, height, resize_quality = 90, background_color: "000000")
r = background_color[0..1].to_i(16)
g = background_color[2..3].to_i(16)
b = background_color[4..5].to_i(16)
output_file = Tempfile.new
resized_image = thumbnail(file, width, height, THUMBNAIL_OPTIONS)
resized_image.jpegsave(output_file.path, Q: resize_quality, **JPEG_OPTIONS)
resized_image.jpegsave(output_file.path, Q: resize_quality, background: [r, g, b], **JPEG_OPTIONS)
output_file
end
def crop(file, width, height, resize_quality = 90)
def crop(file, width, height, resize_quality = 90, background_color: "000000")
return nil unless Danbooru.config.enable_image_cropping?
r = background_color[0..1].to_i(16)
g = background_color[2..3].to_i(16)
b = background_color[4..5].to_i(16)
output_file = Tempfile.new
resized_image = thumbnail(file, width, height, CROP_OPTIONS)
resized_image.jpegsave(output_file.path, Q: resize_quality, **JPEG_OPTIONS)
resized_image.jpegsave(output_file.path, Q: resize_quality, background: [r, g, b], **JPEG_OPTIONS)
output_file
end

8
app/logical/post_thumbnailer.rb
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@ -2,17 +2,17 @@
module PostThumbnailer
extend self
def generate_resizes(file, height, width, type)
def generate_resizes(file, height, width, type, background_color: "000000")
if type == :video
video = FFMPEG::Movie.new(file.path)
crop_file = generate_video_crop_for(video, Danbooru.config.small_image_width)
preview_file = generate_video_preview_for(file.path, Danbooru.config.small_image_width)
sample_file = generate_video_sample_for(file.path)
elsif type == :image
preview_file = DanbooruImageResizer.resize(file, Danbooru.config.small_image_width, Danbooru.config.small_image_width, 87)
crop_file = DanbooruImageResizer.crop(file, Danbooru.config.small_image_width, Danbooru.config.small_image_width, 87)
preview_file = DanbooruImageResizer.resize(file, Danbooru.config.small_image_width, Danbooru.config.small_image_width, 87, background_color: background_color)
crop_file = DanbooruImageResizer.crop(file, Danbooru.config.small_image_width, Danbooru.config.small_image_width, 87, background_color: background_color)
if width > Danbooru.config.large_image_width
sample_file = DanbooruImageResizer.resize(file, Danbooru.config.large_image_width, height, 87)
sample_file = DanbooruImageResizer.resize(file, Danbooru.config.large_image_width, height, 87, background_color: background_color)
end
end

2
app/models/post.rb
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@ -234,7 +234,7 @@ class Post < ApplicationRecord
def regenerate_image_samples!
file = self.file()
preview_file, crop_file, sample_file = ::PostThumbnailer.generate_resizes(file, image_height, image_width, is_video? ? :video : :image)
preview_file, crop_file, sample_file = ::PostThumbnailer.generate_resizes(file, image_height, image_width, is_video? ? :video : :image, background_color: bg_color)
storage_manager.store_file(sample_file, self, :large) if sample_file.present?
storage_manager.store_file(preview_file, self, :preview) if preview_file.present?
storage_manager.store_file(crop_file, self, :crop) if crop_file.present?