问题描述
我是一个预制站点上的新开发人员，试图弄清楚如何使用设置的ImageMagick工具。我们使用它的方式是使用HALD CLUT滤镜自动更改产品的颜色。
我昨天让它运行了，但是输出图像上全是黑线。我测试了产品图像和HALD CLUT过滤器上更改的文件类型/格式，但是没有运气，所以我假设它与ImageMagick有关。
Screen capture of outputted image
有人知道会导致什么原因吗？
class SwatchGenerator {
public $mask;
public $swatches;
public $types;
public $th;
public $base_url;
public $results;
public $type;
public $color;
public $output;
function __construct ($overwrite = false) {
$this->th = \Loader::helper('text');
$this->base_url = \View::url('/');
$this->overwrite = $overwrite;
$this->delimiter = '~';
$this->results = [];
$this->loadSwatches();
$this->loadTypes();
}
function loadSwatches () {
$swatches = \Express::getobjectByHandle('swatch')->getEntries();
foreach ($swatches as $swatch) {
$handle = $this->th->urlify($swatch->getSwatchName());
$filter = $swatch->getSwatchFilter();
$this->swatches[$handle] = (is_object($filter)) ? $this->getImagickInstance($filter) : false;
}
}
function loadTypes () {
$types = \Concrete\Core\File\Image\Thumbnail\Type\Type::getVersionList();
foreach ($types as $type) {
$type_handle = $type->getHandle();
if (strpos($type_handle,'_2x') === false && strpos($type_handle,'product_') !== false) {
$this->types[$type_handle] = $type;
}
}
}
function setType ($type) {
$this->type = $type;
}
function setColor ($color) {
$this->color = $color;
}
function setoutput ($output) {
$this->output = $output;
}
function log ($message) {
$this->addResult($message);
// \Log::addEntry($message);
}
function addResult ($message) {
$this->results[] = $message;
}
function getResults () {
return $this->results;
}
function getResultLog ($delimiter = "\n\r") {
return implode("\n\r",$this->getResults());
}
function generate ($base_file,$allowed_type = false) {
$mask_file = $base_file->getAttribute('color_mask');
if (!is_object($mask_file)) {
$this->log('Mask not found.');
return;
}
if ($base_file->getAttribute('width') != 2560) {
$this->log('Invalid image size found. Must be 2560px wide.');
return;
}
// these are our core images that should not change for any swatch
$base = $this->getImagickInstance($base_file);
// we do this to remove any trace of transparency and flatten the file
// resolves issues with odd masking we were seeing
$base->setimagebackgroundColor('white');
// $base->setimageAlphaChannel(Imagick::ALPHACHANNEL_REMOVE);
$base->setimageAlphaChannel(11);
$base->mergeImageLayers(Imagick::LAYERMETHOD_FLATTEN);
// jpg output
$base->setimageFormat('jpg');
$base->setimageCompressionQuality(85);
$mask = $this->getImagickInstance($mask_file);
$overlay = clone ($base);
$overlay->compositeImage($mask,Imagick::COMPOSITE_copYOPACITY,0);
// base path to write the swatches to
$base_file = $this->parsePath($base_file->getRelativePath());
$pathinfo = pathinfo($base_file);
// stores our composited swatch images
$swatches = [];
// Now create an image for each swatch we have
foreach ($this->swatches as $swatch_handle => $filter) {
// if we are limited to a color,then abort if we are not on it
if ($this->color && $this->color != $swatch_handle) {
continue;
}
$swatch = clone ($base);
if ($filter) {
$swatch->haldClutimage($filter);
}
$swatch->compositeImage($overlay,imagick::COMPOSITE_DEFAULT,0);
$swatches[$swatch_handle] = $swatch;
foreach ($this->types as $type_handle => $type) {
// filter non-product types
if ($allowed_type && $allowed_type !== $type_handle) {
continue;
}
// if we are limited to a type,then abort if we are not on it
if ($this->type && $this->type != $type_handle) {
continue;
}
$output_path = $pathinfo['dirname'] . '/' . $pathinfo['filename'] . $this->delimiter . $type_handle . $this->delimiter . $swatch_handle . '.jpg';
if (file_exists($output_path) && !$this->overwrite) {
$this->log('Skipping existing file at ' . $output_path);
} else {
$this->log('Rendering ' . $this->th->unhandle($swatch_handle) . ' at ' . $type->getWidth() . 'px (' . $type_handle . ')');
$output = clone ($swatch);
$output->resizeImage($type->getWidth(),Imagick::FILTER_lanczos,0);
$output->writeImage('../' . $output_path);
if ($this->output) {
$this->addResult("<img src='/{$output_path}' />");
}
}
}
}
}
function getImagickInstance ($file,$type = false) {
if (is_object($file)) {
$path = ($type) ? $file->getThumbnailURL($type) : $file->getRelativePath();
$image = new Imagick($this->parsePath('../' . $path));
$image->setimageFormat('png');
$image->setFormat('png');
return $image;
}
}
function parsePath ($path) {
// strip leading slash
$path = preg_replace('/^\//','',$path);
return str_replace($base_url,$path);
}
}
我使用的是PHP版本7.0.3.3，Imagick版本3.4.3和ImageMagick 6.9.6-2。
解决方法
我无法访问您的原始图片。但是我确实下载了您的Hald图片。所以我在命令行中将其应用于ImageMagick 6.9.11.28 Q16 Mac OSX中的以下图像，它可以正常工作-至少没有行。因此，我怀疑您的ImageMagick版本或Imagick版本或您的代码有问题。您可以尝试在PHP exec（）中运行我的命令，看看是否可行。它会告诉您ImageMagick是否正常工作。您的输入图像或libpng委托版本也可能有问题。
输入：
Hald图片：
convert lena.jpg hald.png -hald-clut result.png
