github.com/go-oss/image@v0.1.1-0.20230517025328-001b78555e78/jpeg/idct.go (about)

     1  // Copyright 2009 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package jpeg
     6  
     7  const blockSize = 64 // A DCT block is 8x8.
     8  
     9  type block [blockSize]int32