[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC):2025-07-26。"],[],["The `ee.Kernel.laplacian4()` function generates a 3x3 Laplacian-4 edge-detection kernel. It accepts `magnitude` (float, default 1) to scale kernel values and `normalize` (boolean, default false) to normalize values to sum to 1. The function returns a kernel represented by the weights matrix: `[[0, 1, 0], [1, -4, 1], [0, 1, 0]]`. `magnitude` allows for customization of the kernel's sensitivity.\n"]]