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Diffstat (limited to 'tests/utils/ImageUtils.cc')
-rw-r--r-- | tests/utils/ImageUtils.cc | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/tests/utils/ImageUtils.cc b/tests/utils/ImageUtils.cc new file mode 100644 index 0000000..f77ce1e --- /dev/null +++ b/tests/utils/ImageUtils.cc @@ -0,0 +1,37 @@ +/* + * Copyright (c) 2021 Arm Limited. All rights reserved. + * SPDX-License-Identifier: Apache-2.0 + * + * 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. + */ +#include "ImageUtils.hpp" + +void convertImgIoInt8(void * data, const size_t sz) +{ + uint8_t * tmp_req_data = (uint8_t *)data; + int8_t * tmp_signed_req_data = (int8_t *) data; + + for (size_t i = 0; i < sz; ++i) { + tmp_signed_req_data[i] = (int8_t)( + (int32_t)(tmp_req_data[i]) - 128); + } +} + +void convertImgIoGreyscale(const uint8_t * srcPtr, uint8_t * dstPtr, const size_t sz) +{ + for (size_t i = 0; i < sz; ++i, srcPtr += 3) { + *dstPtr++ = 0.2989 * (*srcPtr) + + 0.587 * (*(srcPtr+1)) + + 0.114 * (*(srcPtr+2)); + } +}
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